Beijing T & G metalwork Co., Ltd is a professional manufacturer and supplier, which specializes in valves, flange and pipes as well as industrial components in steel and cast iron by using advanced silicasol and sodium silicate investment casting technology. The industrial components mainly involve precision casting & machining parts to suit industrial applications. Our factory for flange and pipes has 138 sets of machine processing equipment, with workshops of forging, machinery processing, fastener-processing, filling piece-processing and others. We can forge, according to US standard, carbon steel and stainless steel material, flanges of 1/2�90�#65288;DN15-DN2200)and process with large-sized lathes downward welded and butt welded flanges under 3.5m in diameter. The factory has complete processing technique, including hot treatment and surface chemical treatment.