... Materials:42CrMo4,CK45,16Mn.etc CNC Machining Precision forged connecting link:Feature:- Precision forging hammers range from 160 tons ... till 4000 tons-Precision CNC machining centers for further machining process-Induction ... SA350 LF2, 16Mn, 20MnMo, 15MnMo, 12Cr2Mo1, 14Cr1Mo, F304, F316,17-4PH4) Shaft related forgings: 25CrMo4, 42CrMo4, 40CrNiMo, 34CrNi3Mo, 25Cr2Ni4MoV, ...