... series :1. Dia from 82.90mm---130.00mm2.Engine Type : M 103/190 E 2.6/260E/SE ,M110/M123 ,280E/CE ... /161 ,OM616 OM617A ,240D/240GD/L207/307/407D ,M 102 E 23 ,M117/M 119 E 50 ,OM314.963 ,OM352.906 ,OM353 ... circulation system and auto control and pre-alarm system .Phosphating ,gas nitriding ,salt-melting nitriding ,FSD and PCVD .Processing : we use ...