Best Sale Stainless Steel Double Torsion Spring Dongguan City Dalang Vista Hardware Spring Factory Base Info Material:Stainless SteelUsage:IndustrialLoad Type:TorsionShape:CoilWire Diameter 1.8mm:.Endurance Limit: 10000 TimesOrigin:Dongguan, Guangdong, China(Mainland) Description Pre:Custom Stainless Steel Double Torsion Spring Next:Battery Contact Spring