Our enterprise since its inception, often regards solution excellent as enterprise life, continually strengthen output technology, enhance product high quality and continually strengthen organization total high-quality administration, in strict accordance using the national standard ISO 9001:2000 for api 40” hole opener, DRILLING VALVE, api rock drilling bit for water well, CLASS150 Y STRAINER,DOUBLE FLANGED BUTTERFLY VALVE. We never sgood improving our technique and quality to keep up with the development trend of this industry and meet your satisfaction well. If you are interested in our products, please contact us freely. The product will supply to all over the world, such as Europe, America, Australia,Vietnam, Mombasa,Toronto, Riyadh.Profession, Devoting are always fundamental to our mission. We have always been in line with serving customers, creating value management objectives and adhering to the sincerity, dedication, persistent management idea.