Place of Origin
Tianjin, China
product name
Galvanized Roll Up Door Spring
Material
Steel, Carbon steel, Stainless steel, Alloy
Usage
Shutter door, garage door
Wire Dia
5--7.5mm, as your requst
Surface treatment
Zinc-plated, , Electrophoresis Coating , Oxide Coating
Certification
ISO 9001 :2008
Place of Origin
CN,Tianjin