... about 4kg each forged steel rockerspare part for trailer, Material: S235J0 (EN-10025)Steel forging partsOur products have been export ... to many foreign countries. We produce the forged ring according to ... heat treated,CNC machined,die forgingmaterial:Stainless steel,carbon steel,alloy steel,20CrMoTi,34CrMo,42CrMo,20NiCrMo,35CrMo,40CrMnMo,16MnCr ...