Beijing shengtian piping trading co., ltd is a professional manufacture of producing and selling seamless steel pipes, bends, flanges and various steels. the main products of our company include 8 categories: seamless steel pipes for use in low and medium pressure boilers, petroleum casing pipes, ships fliud conveyance, petroleum cracking, chemical fertilizer equipments, structures and hollow pumping rods. it can produce seamless steel pipes according to the standards such as gb, astm, api 5l,