... in Machinery processing, Riveting, Welding ,Forging ,have forging,costing and heating treatment workshops AnShan Ying Yat Trade Co., Ltd and AnShan ... different tonnage. There are also cupola furnace and medium-frequency induction furnace for steel casting and copper casting. Our precision casting ... basis. Professional in Machinery processing, Riveting, Welding ,Forging Casting and Heating treatment