Product Name Constant Force Spring Standard Retraction Spring China Factory Wire Diamter0. 0.08mm-10mm Material spring steel Surface Treatment zinc plating Certificate ISO9001:2008.SGS, ROHS Usuage oth
Product Name Constant Force Spring Standard Retraction Spring China Factory Wire Diamter0. 0.08mm-10mm Material spring steel Surface Treatment zinc plating Certificate ISO9001:2008.SGS ROHS Usuage othe