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!
torsion spring/garage door torsion spring/steel spring