... 40Cr,40CrNi,etc 2.Weight:1.2kg 3.Hardness:HRC48-55 4.Application:Automotive High quality cnc machining forged steel ... spur gearOur Advantages :Over 12 years experienceHigh quality control,Competitive price ... CIF8) payment:T/T9) Packing:Foam, Carton, Wooden boxes Quality Control Process Raw Material Inspection => Production process => 100% ...