... metallurgy, 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 ... requirementPerformanceHigh precision, high wear resistance, low noise, smooth and steady, high strengthModel numberStandard or nonstandard (single ...