... , 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 ... resistance, low noise, smooth and steady, high strengthModel numberStandard or nonstandard (single duplex and triple)20A10-100, 40A10- ...