Stainless Steel Extension Torsion Spring (HPD2013012) Hiproda Hardware Products Co., Ltd. Base Info Model NO.:HPD2013012Material:as Per Cusomers′ DemandUsage:Multi-FunctionLoad Type:TorsionShape:Torsion-BarTrademark:HiprodaSpecification:ROHS, SGS,Origin:Shenzhen Description Pre:Bellevile Spring Next:Battery Contact, Battery Spring (HPD2013013)