Machinery Precision Parts, Welding Parts, CNC Machining Parts manufacturer / supplier in China, offering Stainless Steel Vacuum Straight Pipe Union Welded with Flanges Connection, High Polishing Stainless Steel Weld Flange Pipe Fittings for Industrial Liquid Transportation, 304/316 Stainless Steel Welding Flange Square Pipe Fittings for Industrial Liquid Transportation and so on.