... .Material: 60si2MnA spring steel 3.Style: coil 4.HRC:46-52DEGREE automobile compression coil 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 ...