... C1018A,C1022,C1035K,C1045K,etc.8.Alloy steel:SCM435,10B21,40Cr,etc.Specification and gaugeproduce according to ... compliance2quality system: ISO standard, 100% whole range inspection through the production3inspection equipment: hardness test, torque test, salt spray endurance ... : ISO standard, 100% whole range inspection through the production.3inspection equipment: hardness test, torque test, salt spray ...