... professional manufacturer on different casting, forging, machining & welding by a lot of material, such as ductile iron, stainless steel, aluminum ... world and earned good reputation. For the specification of Copper fitting 1. Material: Different copper series .2. Process: Casting with ... you. QueenieShanxi Hollyland Industrial Co., Ltd.Rm. A&B,16/F,Unit A, King Office Building,No.9 Fuxi Street, Taiyuan ...