Product Name Custom Constant Force Springs for Curtain Spring Wire Diamter0. 0.08mm-10mm Material spring steel Surface Treatment zinc plating Certificate ISO9001:2008.SGS, ROHS Usuage others Rust Proof
Product Name Custom Constant Force Springs for Curtain Spring Wire Diamter0. 0.08mm-10mm Material spring steel Surface Treatment zinc plating Certificate ISO9001:2008.SGS, ROHS Usuage others Rust Proof