Place of Origin
Zhejiang, China
After-sale Service
Online technical support
Project Solution Capability
graphic design
Surface Finishing
Finished
Product name
Garage door torsion spring
Thickness
207/218/225/234/243/250
Size
1 3/4'', 2'', 2 5/8'', 3 3/4''
Finished
Antirust Oil/Dacromet coating/Electrophpresis coating/Powder
Hardware System:
USA / EU standard
Material
82b high carbon manganese steel wire