Linyi Sanwei Precision Casting Co. , Ltd. , located in convenient, economically developed industrial powerhouse ---- Hi-tech Development Zone of Linyi City, specializing in the production of 304, 316 stainless steel pipe fittings, precision castings parts, Stainless steel parts, Stainless steel hex nipple fittings, Stainless steel pipe threads, Stainless steel casting, Stainless Steel,pipe fittings,pipe,tube, copper pipe,fasteners,round boar,nickel,brass round,steel flanges