We are factory specializing in the manufacture and export of drill pipe, drill collars and drilling joints (API and other standerds) for more than six years. We have profuse designs with series quality grade, and expressly, our price is very competitive because we are manufactory, we are the source..
Should any of these items be of interest to you, please let us know, We will be happy to give you more details. As a very active manufactures, we can  develop new designsaccording to our costomers,
  Having built up a good reputation, we are renowned for our reliable products, competitive prices and fast order delivery.we have got the citification of the ISO9001 and API , we are always insisting on the slogan of "Creativity, Quality First, Satisfy Clients".