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Quick Details

Usage: Industrial
Material: Steel
Load Type: Torsion
Model Number: QYS-004
Brand Name: QY
Place of Origin: China (Mainland)

Specifications

3 3/4 inches  torsion spring for industrial door,garage door.
Size: 3 3/4 inches
Material:Steel
Item Number:QYS-004
Our company's springs have the good quality, accurate design and advanced processing technology. So in the case of without loaded motor(or power cut), our spring still can maked the door relaxed open to reach manual effect. In the case of loaded motor, it can reduce the motor'working load, prolong the service life. Our company's products have a good reputation at home and abroad, and become the first choice at home and abroad enterprises...