It adheres to the tenet Honest, industrious, enterprising, innovative to develop new products constantly. It regards customers, success as its own success. Let us develop prosperous future hand in hand for TCI trenchless tricone bit, 311mm IADC517 drill bit, WHOLESALE VALVE, ASTM A536 65-45-12 BUTTERFLY VALVE,hybrid drill bit manufacturer. We can do your customized order to meet your own satisfactory! Our company sets up several departments, including production department, sales department, quality control department and sevice center, etc. The product will supply to all over the world, such as Europe, America, Australia,Mexico, Slovenia,Portugal, panama.We have more than 200 staff including experienced managers, creative designers, sophisticated engineers and skilled workers. Through hard work of all employees for the past 20 years own company grew stronger and stronger. We always apply the client first principle. We also always fulfill all contracts to the point and therefore enjoy excellent reputation and trust among our customers. You are very welcome to personally visit our company.We hope to start a business partnership on the basis of mutual benefit and successful development . For more information please do no hesitate to contact us..