... & welding by a lot of material, such as ductile iron, stainless steel, aluminum, brass etc. We have supplied good quality products & ... For the specification of forging bowl: 1. Material: Different Iron & Steel series2. Process: Casting, Machining, Punching3.Surface Treatment: Polish, Plating etc ... Co., Ltd.Rm. A&B, 16/F, Unit A, King Office Building,No. 9 Fuxi Str., Taiyuan, Shanxi, China.030002Tel. ...