... machining workshop, rivet welding workshop, casting / forging workshop and other branch fact AnShan Ying Yat Trade Co., ... company has branch factories for forging, casting, heat treatment quenching-and-tempering, machining and rivet welding. We have very ... forging roller, hot rolled forging roller, cold rolled working roller, cold rolled support roller, hyperbolic roller, silica-gel roller.And here ...