... fully-automatic production 2.ROHS standard 3.Spring Quality:ISO90001&ISO14001 Auto brake spring accessory Spec: wire dia. Range: ... Length: mmTotal Coil: Direction of Coiling: 2.Material:Spring steel,stainless steel,zinc plating steel,etc. 3.Surface ... all kinds of springs,like brake spring,waved spring,tension spring,wire formed spring,compression spring,torsion spring ect.We also good provide ...