Product Name:Guide pin Material: HSS, SKD61, SKH51 ,ASP23 .... Hardness:HRC 60 ... also make kind of mould spare parts .1.SpecificationsProduct Name:Guide PinMaterial: HSS, SKD61, SKH51 ,SKD11,HSS M-2, SKH9 ... What material of products you produced ,we can change the steel for your .or you can straight tell us what steel ... No.:0086-13656590159 Website Http://www.ucanmould.com Guide Pin for injection mould