... 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- ... flange: S355, C22, 16Mn, 20Mn, 42CrMo, F3042) Forged pipe fittings: SA106 CL B, SA 106 CL C, ... welcome your inquiry with the drawings!!! Precision forged connecting link