- Home
- ยป
- Our Services
- »
- IT Management Systems
IT Management Systems
Servo Drive Repair Service
Minimum Order Quantity: 1 Unit
View Brochure
| Service Warranty | 3 Months |
| Issue | Any Issue |
| Model Name/Number | Any Model Name/Number |
| We Repair | AC/DC Drive Repair, HMI Repair, PLC Repair, VFD Repair,HMI Touch Screen Repair Servo Drive Repair |
| Service Type | All Service Type |
| Under Warranty | Yes |
| Number Of Motors | Any Number Of Motors |
| No Of Units | Any No Of Units |
| Mode Of Repairing | Repairing |
| Service Mode | Offline |
| Service Location | Pan India |
| Payment Mode | Online/Offline |
| Service Duration | 3-5 Days |
Additional Information:
- Production Capacity: 225
- Delivery Time: As per requirement
- Packaging Details: As per requirement
Audio Power Amplifier Repairing Services
Minimum Order Quantity: 1 Unit
View Brochure
| Model Name/Number | Any Model Name/Number |
| Locality Of Residence | New Delhi |
| Warranty on Service | 30 Days |
| Service Mode | Offline and Online |
| Payment Mode | Online/Offline |
| Location | Pan India |
We are a reputed name in the industry, devoted towards offering the best quality Music System Repair. The offered service is performed by our adept professionals using optimum grade machines and high-end technology. We have a team of experienced professionals who perform this service in an excellent manner. This service is much-admired by our clients for its perfect execution and promptness.
Additional Information:
- Production Capacity: 1423
- Delivery Time: As per the needs and require
- Packaging Details: As per the needs and require
Altas Copco Neos Inverter Drive Repair Service
Minimum Order Quantity: 1 Unit
View Brochure
| Service Warranty | 3 Months |
| Brand | Atlas Copco |
| Location | Pan India |
for the compressor. The Neos is Atlas Copco’s in-house designed inverter specifically for GA oil-injected screw compressors.
Neos has been designed in-house by Atlas Copco. The focus is on compactness,simplicity and user-friendliness.Neos has an IP5X protection degree. All components in the drive are protected
from dust and moisture, thanks to a robust, aluminum enclosure. The Neos will
operate trouble-free in the harshest conditions.
Additional Information:
- Production Capacity: 2351
- Delivery Time: as required
- Packaging Details: as required
Hitachi Vfd Repair and service
Minimum Order Quantity: 1 Unit
View Brochure
| Drive Brand | all Schneider VFD Drive Repair |
| Service Warranty | 3 Months |
| Location | Pan India |
| We Repair | All types and all brands VFD AC DC and Servo drive HMI panel PLC CNC UPS Inverter power supply mother board CCTV camera DVR NVR fire alarm panel on components lavel |
| Services Duration | 2/3 Days |
| Capacity | Any Capacity |
| Number Of Motors | Any Number Of Motors |
| Specific Problem/Issue | Any Specific Problem/Issue |
| Usage/Application | Any/All |
We Repair all types of VFD AC DC and Servo drive HMI panel PLC CNC UPS Inverter power supply mother board CCTV camera DVR NVR fire alarm panel on components lavel
Additional Information:
- Production Capacity: dsads
- Delivery Time: Yaskawa/ ABB/ Delta AC Drive Repair Services, in Delhi
- Packaging Details: Yaskawa/ ABB/ Delta AC Drive Repair Services, in Delhi
Projector Repairing Services
Minimum Order Quantity: 1 Unit
View Brochure
| Brand Covered | al, Drive Brand (Important) |
| Location/City | Delhi |
| Feature | all types of feature |
| Service Charges | 1000 |
| Brand | All Types of LED Projector, Projector Lamp, Projector Color Wheel, Projector Ballast, DMD, LCD Pane |
| Model Name/Number | All Model Name/Number |
Additional Information:
- Production Capacity: 1215
- Delivery Time: Model Name/Number
- Packaging Details: Model Name/Number
Siemens AC DC And Servo Drive Repair Service
Minimum Order Quantity: 1 Unit
View Brochure
| Drive Type | ALL Drive Brand (Important) |
| Drive Brand | ALL Drive Brand (Important) |
| Service Warranty | 3 Months |
| Service Mode | Offline and Online |
| Location/City | Pan India |
| Payment Mode | Online/Offline |
| Preferred Completion Duration | Flexible Time |
| Brand | Any Brands |
| Type Of Problems | Any Type Of Problems |
Additional Information:
- Production Capacity: 2546
- Delivery Time: As per the needs and requirement
- Packaging Details: As per the needs and requirement
Parker Dc Drive Repair Service
Minimum Order Quantity: 1 Unit
View Brochure
| Drive Brand | ALL Drive Brand (Important) |
| Service Location | Pan India |
| Service Mode | ONLINE & OFFLINE |
| Brand | PARKER, SIEMENS, ABB, SCHNEIDER, DELTA & OTHERS |
| Model Name/Number | ANY MAKE AND MODELS |
| We Repair | ALL TYPES OF VFD, AC, DC & SERVO DRIVE HMI PANEL ON COMPONENTS LEVEL |
Additional Information:
- Production Capacity: 0786
- Delivery Time: AS PER REQUIRED
- Packaging Details: AS PER REQUIRED
PLC Repair Service
View Brochure
| PLC Brand | ALL PLC Brand (Important) |
| Service Warranty | 3 Months |
| We Repair | We repair all types of VFD AC DC and servo drive HMI panel power supply mother board PLC CNC on components level if you have any requirement for components level Repairing |
| Location Type | Pan India |
| Payment Mode | Online/Offline |
In order to cater the variegated demands of our clients, We offer our precious clients the premium quality PLC Repairing Service. This service is widely appreciated by our valuable clients owing to its perfect execution and cost-effectiveness features. The offered service is performed by our highly experienced professionals using the best grade tools and advanced technology. Our professionals check all the steps related to this service and execute it in an excellent manner. Moreover, our precious clients can avail this service from us at most reasonable price.
CCTV Camera Repair and Service
View Brochure
| Response Time | Next Day |
| Locality Of Residence | pan India |
| Complaints Or Issues | Any Problem |
Explosion Proof IP CCTV Camera Repair Service
Minimum Order Quantity: 1 Unit
View Brochure
| Service Type | We are a reputed service provider of Wireless CCTV Camera Installation Services. We believe in quali |
| Response Time | Next Day |
| Usage/Application | Any Application |
| Camera Model | Any Make and Model |
| Location | pan india |
| Mode Of Service | ONLINE & OFFLINE |
| Feature | We are a reputed service provider of Wireless CCTV Camera Installation Services. We believe in quali |
| Camera Technology | We are a reputed service provider of Wireless CCTV Camera Installation Services. We believe in quali |
| Complaints Or Issues | ANY Complaints Or Issues |
We are a reputed service provider of Explosion-proof IP Cameras Wireless CCTV Camera Installation Services. We believe in quality and timely delivery of services.
Additional Information:
- Production Capacity: 100
- Delivery Time: 1/2 days
- Packaging Details: We are a reputed service provider of Wireless CCTV Camera Installation Services. We believe in quality and timely delivery of services.
CCTV Camera DVR NVR Repairing Service
View Brochure
| Response Time | Next Day |
| Location | Pan India |
| Service Mode | Offline |
| Payment Mode | Online/Offline |
| Preferred Completion Duration | Flexible Time |
Backed by years of industry experience, we are highly engrossed in providing a qualitative Amplifier Repair Service This service is executed by our skilled professionals using high grade tools and advanced technology. Our professionals check all the quality parameters associated to this service and perform the service in the best possible manner. Provided service is carried out in an excellent manner. Moreover, this service can be availed by our clients at most reasonable price.
Siemens HMI Repairing Service
Minimum Order Quantity: 1 Unit
View Brochure
| Brand | Any |
| Model Name/Number | Any |
| Display Size | Any |
| Type of Communication | Any Types of Communication |
| Port Type | Any |
| Mounting Type | all |
| Product Type | Siemens Automation |
| Display Type | any types |
| HMI Device Brand | any |
| Location | all india |
| Duration | 2/3 dayes |
| Automation Grade | Automatic |
| Complaints Or Issues | Any Complaints Or Issues |
| Connectivity Type | any |
| No Of Systems | any |
Additional Information:
- Production Capacity: 6589
- Delivery Time: 2 days
- Packaging Details: As per the needs and require
BAUMULLER SERVO DRIVE REPAIR SERVICE
Minimum Order Quantity: 1 Piece
View Brochure
| Material | any material |
| Max Cutting Speed | any Cutting Speed |
| Cutting Width | Any Model |
| Max Cutting Width | any Cutting Speed |
| Brand | Any Brand |
Baumuller All Kind of Encoder Cards, CAN Interface, Seriel Interface Cards,Control Units, Hmi Disply Etc.
Additional Information:
- Production Capacity: 7520
- Delivery Time: As PER REQUIRED
- Packaging Details: As PER REQUIRED
Allen Bradley Hmi Repairing Service
View Brochure
| Mode Of Service | All types |
| We Repair | VFD AC DC and servo drive HMI panel power supply |
| Controller Function Type | All types |
| Preferred Completion Duration | Flexible Time |
| Location | Pan India |
| Service Mode | Offline |
| Payment Mode | Online/Offline |
Being a customer oriented organization, we have been able to provide our clients the best quality Water Level Controller Repairing Service. We offer this service in an excellent manner within a scheduled time-frame. The offered service is performed by our highly qualified professionals using excellent grade tools and advanced technology. Our professionals perform this service as per the requirements of our clients. Further, the provided service can be availed by our valuable clients at most competitive price.
Co2 Laser Rf Power Supply Repair
Minimum Order Quantity: 1 Unit
View Brochure
| Type Of Electronic Card | Yaskawa/ ABB/ Delta AC Drive Repair Services, in Delhi |
| Complaints Or Issues | any problem |
| Holds your PCB | Any |
| Type Of Circuit | any |
| Type Of Control Card | Yaskawa/ ABB/ Delta AC Drive Repair Services, in Delhi |
| Electronics Type | Any |
| We Repair | All types |
| Mode Of Service | All |
| Service Location/City | Pan India |
| Payment Mode | Online/Offline |
We are the leading organization in the industry to provide our clients the best quality Electronic Repair Service. This service is widely appreciated by our valuable clients owing to its perfect execution and cost-effectiveness features. The offered service is performed by our highly experienced professionals using the best grade tools and advanced technology. Provided service is carried out in an excellent manner. Moreover, this service can be availed by our clients at most reasonable price.
Additional Information:
- Production Capacity: 5486
- Delivery Time: As per the needs and require
- Packaging Details: As per the needs and require
Siemens Simodrive 611 Repair and service
Minimum Order Quantity: 1 Unit
View Brochure
| Brand | Siemens/ Yaskawa/ ABB/ Delta/ Fanuc/ mitsubishi |
| Model Name/Number | Any Model |
| Type Of Problems | Any Types Of Problem |
| Location | Pan India |
| Complaints Or Issues | Any Complaints Or Issues |
| We Repair | We are Providing repair and maintenance service for Siemens Industrial Automation products |
| Service Mode | As per the needs and require |
We have the experience in repairing Siemens,Simodrive LT Module,ER Module timely and cost effective manner.
Additional Information:
- Production Capacity: 500
- Delivery Time: As per the needs and require
- Packaging Details: As per the needs and require
Yaskawa VFD Drive Repairing And Service
View Brochure
| Model Name/Number | any |
| Type of VFD | all types |
| Issue | any |
| We Repair | We Repair all types of PCB board power supply mother board VFD AC DC and Servo drive HMI panel PLC C |
| Location | pan india |
| Usage/Application | all |
AC Drives Soft Starters Repair Service
Minimum Order Quantity: 1 Unit
View Brochure
| Location/City | Pan India |
| Service Mode | Offline |
| Payment Mode | Online/Offline |
| Preferred Completion Duration | Flexible Time |
| Brand | Any Brand |
| Model Name/Number | Any Make And Model VFD REPAIR SERVICES |
Additional Information:
- Production Capacity: 2500
- Delivery Time: As per the needs and require
- Packaging Details: As per the needs and require
Servo Drive Repairing
Minimum Order Quantity: 1 Unit
View Brochure
| We Repair | AC/DC Drive Repair, HMI Repair, PLC Repair, VFD Repair,HMI Touch Screen Repair Servo Drive Repair |
| Model Name/Number | Any Model Name/Number |
| Issue | Any Issue |
| Mode Of Repairing | Repairing |
| No Of Units | Any No Of Units |
| Number Of Motors | Any Number Of Motors |
| Power | Any |
| Under Warranty | Yes |
| Service Type | All Service Type |
| Brand | Any Brand |
Additional Information:
- Production Capacity: 500
- Delivery Time: As per the needs and require
- Packaging Details: As per the needs and require
UPS Inverter Repair Service
Minimum Order Quantity: 1 Unit
View Brochure
| Capacity | any |
| We Repair | We are Providing repair and maintenance service for Siemens Industrial Automation products |
| Type Of Inverter | On Grid |
| Service Location/City | Pan India |
| Type Of Battery | any |
| Service Mode | Offline |
| Payment Mode | Online/Offline |
Additional Information:
- Production Capacity: 4244
- Delivery Time: 2/3 day
- Packaging Details: Any Number Of Motors
Keb Servo Drive Repairing Service
Minimum Order Quantity: 1 Unit
View Brochure
| We Repair | We Repair all types and all Brands VFD AC DC and Servo drive HMI panel PLC CNC UPS Inverter PCB board power supply mother board CCTV camera DVR NVR fire alarm panel on components lavel |
| Model Name/Number | Any Model Name/Number |
| Issue | Any Issue |
| Servo Drive Architecture | Analog |
| Mode Of Repairing | Repairing |
| No Of Units | Any No Of Units |
| Number Of Motors | Any Number Of Motors |
| Power | Any |
| Under Warranty | Yes |
| Service Type | All Service Type |
Additional Information:
- Production Capacity: 100
- Delivery Time: 2/3 days
- Packaging Details: As per the needs and require
Tde Macno Drive Repairs
Minimum Order Quantity: 1 Piece
View Brochure
| Service Location | Pan India |
| We Repair | Programmable Logic Controller (PLC), AC DC & SERVO DRIVE |
| Mode of Repairing | On Line & Off Line Repairing |
| Input Voltage Range | ALL |
| BRANDS | ANY BRANDS |
| Servo Drive Architecture | Analog |
Electronics Repairs services.We have the capabilities to repair and service all TDE Macno
industrial automation products.
We are a well-known name, involved in providing an extensive series of TDE Macno Servo Drive Repair. Our product is extremely employed by customers owing to their sturdy nature.
Additional Information:
- Production Capacity: 11111
- Delivery Time: AS PER REQUIRED
- Packaging Details: AS PER REQUIRED
Hmi Panel Repairing Service
Minimum Order Quantity: 1 Unit
View Brochure
| Model Name/Number | all |
| Product Type | Industrial Product |
| Mounting Type | All |
| Display Size | any |
| HMI Device Brand | any |
| Display Type | all |
Electrotech Technology is a group of engineers- Electrical, Mechanical and Automation. We provide Core engineering and services to our esteem and valuable Customers. We provide efficient and cost-effective Industrial Electrical, Mechanical and Automation Solutions.
Siemens Sinamics G120 PM240 VFD Drive Repair And Service
View Brochure
| Brand | all |
| Input Voltage | 230 & 440 |
| Input Phase | all |
| Type Of Control Card | any type |
| Type Of Circuit | Alltypes |
| Complaints Or Issues | any problem |
| Type Of Electronic Card | any type |
we repair - SINAMICS G120 POWER MODULE PM240 ALL MODEL MICROMASTER MM440 ALL MODEL AND Printed Circuit Board, Programmable Logic Controller (PLC), CNC Control, Electronic Terminal
Power Board And Control Board Repair And Service
Minimum Order Quantity: 1 Unit
View Brochure
| Service Duration | 1-2 days |
| Response Time | Same day |
| Complaints Or Issues | any problem |
| Payment Mode | Online/Offline |
Being a leader in the industry, we are engaged in providing our clients a qualitative Computer Repairing Services. The provided service is performed by our highly experienced professionals using superior grade tools and latest technology. This service is carried out as per the variegated requirements of our valuable clients. The offered service is highly acknowledged by our clients owing to its flawlessness and hassle free execution. Moreover, clients can avail this service from us at pocket-friendly price.
Additional Information:
- Production Capacity: 100
- Delivery Time: 2/3 days
- Packaging Details: As per the needs and require
Smiths Heimann Hi-Reg Xrc-2.1, Hi-Reg Xrc-10.0 Repair Service
Minimum Order Quantity: 1 Unit
View Brochure
| Drive Brand | ALL Drive Brand (Important) |
| Service Warranty | 3 Months |
| Application Industry | ALL Drive Brand (Important) |
| Brand | SMITHS HEIMANN |
| Type Of Problems | Any Types Of problem |
| Model Name/Number | All Models HI-REG XRC-2.1,HI-REG XRC-10.0 |
We Repair All Types of Smiths Heimann Power Supplly/Generator Unit
- POWER SUPPLY
- Model- HIREGXRC100, HI-REG XRC-2.1, HI-REG XRC-10.0
Smiths Heimann - HI-REG XRC-10.0 repair options:
- Standard Repair - Up to 10 workings days*
- Emergency Repairs - Up to 3 working days.*
* Repair service is subject to evaluation.
Additional Information:
- Production Capacity: 2355
- Delivery Time: As per required
- Packaging Details: As per required
AC Soft Starter Repair Service
Minimum Order Quantity: 1 Unit
View Brochure
| Service Location | All India |
| Service Type | ALL SERVICE |
| Type Of Maintenance | Preventive Maintenance |
| Service Mode | Offline |
| Location/City | Pan India |
| Payment Mode | Online/Offline |
We are the leading organization to offer our precious clients an optimum quality AC Soft Starter Repairing Service. This service is carried out under the strict supervision of our experts using the best grade tools and advanced techniques. Our skilled professionals ensure the clients that the service, provided by us is highly reliable and executed in an excellent manner. The offered service is performed within a stipulated time-frame. Furthermore, this service can be availed by our precious clients at budget-friendly prices.
Additional Information:
- Production Capacity: 5410
- Delivery Time: As per the needs and require
- Packaging Details: As per the needs and require
ENCODER REPAIR SERVICE
Minimum Order Quantity: 1 Unit
View Brochure
| Service Duration | 1 days |
| Response Time | Same day |
| Kind Of Application | Business/Commercial |
| Mode Of Service Required | On-Site |
Additional Information:
- Production Capacity: 542
- Delivery Time: Any
- Packaging Details: Any
Simodrive LT Module Repair and Service
Minimum Order Quantity: 1 Unit
View Brochure
| Service Warranty | 3 Months |
| Service Mode | Offline and Online |
| Location/City | Pan India |
| Payment Mode | Online/Offline |
| Type Of Problems | Any Type Of Problems |
We are a unique name in the industry to provide our precious clients the best quality Siemens Vfd Spare Parts Repairing Service. The provided service is carried out by our skilled team of professionals in the best possible manner. While performing this service, our experts ensure that the offered service delivers precision results and is within the budget to attain maximum clients’ satisfaction. Moreover, this service is widely acknowledged by our valuable clients for its flawlessness and hassle free execution.
Additional Information:
- Production Capacity: 2566
- Delivery Time: Any Number Of Motors
- Packaging Details: Any Number Of Motors
Servo Motor Repair Services
Minimum Order Quantity: 1 Unit
View Brochure
| Warranty | 3 Month |
| Service Location | Service Center |
| Locality Of Residence | New Delhi |
Additional Information:
- Production Capacity: 25565
- Delivery Time: As per the needs and require
- Packaging Details: As per the needs and require
Quantum External Tabletop SCSI Tape Drive Module Repair and Service
Minimum Order Quantity: 1 Piece
View Brochure
| Warranty | 3 MONTH |
We Repair all types of Quantum DLT8000 External Tabletop SCSI Tape Drive Module.Digital Linear Tape (DLT) DLT8000 LVD SCSI Tape Drive, 40/80GB Tape Capacity, U160 LVD SCSI Interface, 6MB /Sec Read/Write Speed, External Tabletop Enclosure
Additional Information:
- Production Capacity: 1254
- Delivery Time: AS PER REQUIRED
- Packaging Details: AS PER REQUIRED
Fanuc Servo Drives Repair and Service
Minimum Order Quantity: 1 Unit
View Brochure
| We Repair | AC/DC Drive Repair, HMI Repair, PLC Repair, VFD Repair,HMI Touch Screen Repair Servo Drive Repair |
| Model Name/Number | Any Model Name/Number |
| Issue | Any Issue |
| Location/City | Pan India |
| Service Mode | Offline |
| Payment Mode | Online/ffline |
| Capacity | any |
With the continuous support and sincere efforts put by our experienced professionals, we have been able to provide our clients the best quality AC DC Drive Repair Service. Offered service is performed under the strict supervision of our experts using optimum grade tools and latest technology. Our professionals perform this service as per the requirements of our clients. Further, the provided service can be availed by our valuable clients at most competitive price.
Additional Information:
- Production Capacity: 42424
- Delivery Time: Yaskawa/ ABB/ Delta AC Drive Repair Services, in Delhi
- Packaging Details: Yaskawa/ ABB/ Delta AC Drive Repair Services, in Delhi
Fire Alarm System Repairing Service
Minimum Order Quantity: 1 Unit
View Brochure
| Warranty on Service | 90 Days |
| Suitable Date And Time | 24 For 7 |
| Technology | We Repair all types and all brands Loop card fire alarm system notifier, VFD AC DC and servo drive H |
| Service Charges | 500 |
| Locality Of Residence | Pan India |
| Problem / Issue | Any Problem / Issue |
| Type of Power supply | All types of power supply |
| Model Name/Number | all types of Fire Alarm System Repairing Service |
Additional Information:
- Production Capacity: 100
- Delivery Time: 1/2 Days
- Packaging Details: We Repair all types and all brands Loop card fire alarm system notifier, VFD AC DC and servo drive HMI panel power supply mother board PLC CNC UPS inverter LCD monitor CCTV camera DVR NVR fire alarm system on components level
Online Ups Inverter Repairing Services
Minimum Order Quantity: 1 Unit
View Brochure
| Response Time | Same Day |
| Service Location/City | DELHI-110020 |
| We Repair | We are Providing repair and maintenance service for Siemens Industrial Automation products |
| Service Duration | 3-5 Days |
| Payment Mode | Online/Offline |
| Service Mode | Offline |
| Service Location | Pan India |
Additional Information:
- Production Capacity: 4454
- Delivery Time: 2/3 days
- Packaging Details: Any Number Of Motors
Dc Drive Repair Services
Minimum Order Quantity: 1 Unit
View Brochure
| Drive Type | ALL Drive Brand (Important) |
| Drive Brand | ALL Drive Brand (Important) |
| Service Warranty | 3 Months |
| Type Of Problems | Any Type Of Problems |
| Brand | Yaskawa/ ABB/ Delta/ Siemens/Mitsubisi |
| Location | Pan India |
| Model Name/Number | Any Model Name/Number |
Additional Information:
- Production Capacity: 4561
- Delivery Time: As per the needs and require
- Packaging Details: As per the needs and require
Suction Machine Repair Service
Minimum Order Quantity: 1 Unit
View Brochure
| Service Duration | 1 days |
| Problem / Issue | any problem |
| Industry Product Type | Healthcare equipments |
| Model Name/Number | And make and model |
| Service Charges | 3000 |
| Date & Time Slot | 2/3 days |
| Location | New Delhi |
| Duration | 2/3 days |
| Work Location | pan india |
Electrotech Technology is a group of engineers- Electrical, Mechanical and Automation. We provide Core engineering and services to our esteem and valuable Customers. We provide efficient and cost-effective Industrial Electrical, Mechanical and Automation Solutions.
Additional Information:
- Production Capacity: 46546
- Delivery Time: 2/3 days
- Packaging Details: 2/3 days
Apc Ups Repairing Services
Minimum Order Quantity: 1 Piece
View Brochure
| Service Duration | 1-2 days |
| Response Time | As per AMC Schedule |
| Service Location/City | Pan India |
| We Repair | We are Providing repair and maintenance service for Siemens Industrial Automation products |
| Capacity | 2546 |
| Location/City | NEW DELHI |
| Service Mode | Offline and Online |
| Payment Mode | Online/Offline |
Backed by rich industry experiences, we are highly engaged in offering an optimum quality UPS Repairing Service. Our offered services have gained wide appreciation from our precious clients for their varied associated attributes like promptness, flawlessness and perfect execution. Services, offered by us are performed using the best grade tools and modern technology. Our experts examine all the parameters associated to these services and execute them in an excellent manner. Furthermore, provided services can be availed by our valuable clients at most competitive prices.
Additional Information:
- Production Capacity: NEW DELHI
- Delivery Time: As per the needs and require
- Packaging Details: As per the needs and require