Lugar de origem
Tianjin, China
Product name
Industrial Roll Up Door Spring Torsion Spring For Roller Shutter Door
Material
High carton steel : 77B / 82B
Surface Treatment
Oiled Tempered /Black coated /Corrosion resistant
Certification
ISO 9001 :2008
Place of Origin
CN;Tianjin
Packing
Standard spring ot as you requested
Application
Rolling door /garage door /Industrial /Furniture