We mainly produce various butt welded elbow screwed elbows, equal tee, reducing tee,3-way pipes, reducing pipes, cross, reducer, pipe caps, flanges and pipe fittings, as well as the four piping systems and pipes in power plants made of carbon steel, alloy steel, stainless steel etc. and the annual output is up to 4000 tons, with specifications (DN15-DN2000), sch10-sch160 according to ANSI/ASME,JIS,DIN,BS GB,SHJ,HGJ,HG, standards, or users' drawings. and widely used in petroleum chemical industry, petroleum industry, chemical, industry, textile, paper making, electric power, shipbuilding, metallurgy, foods, pharmacy, machinery, nuclear power and so on. Through those years' effort, we have got good reputation in the world market.