Materials for manufacture of high carbon steel spring wire: 60#, 70#, 75#, 72A, 72B, 82B, 65Mn Wire diameter range: 0.2-12.0mm Standard followed in producing high carbon steel spring wire: GB4357-89, DIN17223 Packing: In coils, wrapped by gunny cloth Transport: Loading about 20tons in one 20's container Finish: Black and galvanized surface Application: High carbon steel spring wire can be widely used for rolling various precision springs.