... 2.Material: 60si2MnA spring steel 3.Style: coil 4.HRC:46-52DEGREE Suspension Spring for cars Product Detail 1.wire diameter5-50mm2 ... ,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 ...