... Length: mmTotal Coil: Direction of Coiling: 2.Material:Spring steel,stainless steel,zinc plating steel,etc. 3.Surface ... various modes of transport, auto parts, sports apparatus, switch, socket, water heater, calculator, watch, igniter, mouse, electrical machine ... kinds of springs,like brake spring,waved spring,tension spring,wire formed spring,compression spring,torsion spring ect.We also good provide ...