Extension Spring (HPD2013015) Hiproda Hardware Products Co., Ltd. Base Info Model NO.:HPD2013015Material:Phosphor CopperUsage:Multi-FunctionLoad Type:ExtensionShape:CylinderTrademark:HiprodaSpecification:ROHS, SGS,Origin:Shenzhen Description Pre:Electric Hosit Next:Compression Spring (HPD2013016)