car spare parts of metal spring 1.wire diameter: 5-50mm 2.Material ... : coil 4.HRC:46-52DEGREE car spare parts of metal spring Product Detail 1.wire diameter5-50mm2.Material60si2MnA3.MOQ500pcs ... ,punctual shipment. Welcome to our factory! We're manufacture of Coil Springs for TOYOTA,NISSAN,MAZDA,BENZ,VOLKSWAGEN,DAEWOO, ... ETC. If you're interested in or need some of it, contact with us in any time. May ...