... , mine, build, electron, port etc..professional automation production and conveying transmission equipment MaterialC45, A3, 40Cr, 20CrMnTi, 42CrMo ... , copper, stainless steel and so on as per your requestprocessForged or castingHeat treatmentHigh ... or negotiablePackagingInner plastic bag and outer carton box or customer requirement. DIN and ANSI machining transmission chain drive ...