... and good service. -OEM service Qingdao Jowon Mechanical and Electrical Co., Ltd. offers production and operation of casting products, auto parts ... of modern science and technology entities. Qingdao Jowon M & E Co.,Ltd ItemDescriptionNameCasingMaterialCast Iron, Ductile Iron, Aluminum, or as customer needingSurface ... email us the drawing or send sample to us. Electric Firm brake drum