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Description:
galvanized steel torsion springmultiple spring sizes
pre-cut and pre-installed winding cones
protective coating
heavy duty
torsion spring, garage door spring, garage door torsionspring
description:
- galvanized steel
- the raw material 72B.65 Mni, 82B
- multiple spring sizes
- Length of spring:50mm-152mm
- Diameter of wire:5.0mm-11.5mm
- pre-cut and pre-installed winding cones
- Protective coating to prevent rust , decay and moisture andprolong the life of your spring.
- Heavy Gauge material for, strength, durability and easyinstallation
- Springs can be ganged for heavier doors
10. left and right
please kindly provide the information as below:Thelength of spring, the internal diameter of spring, the diameter ofwire.with these specification , we can quote you our bestprice.
our products are sold well at home and abroad, wehave cooperated very well with Flexiforce, DMI, Door Han and soon.
Welcome to visit our factory!



