"Quality 1st, Honesty as base, Sincere company and mutual profit" is our idea, in an effort to create consistently and pursue the excellence for 135mm Power Section, Oilfield Drill Bit Companies, Mining Drill Bit, Pin Connection,Tricone Bit Manufacturers. We are glad that we are steadily growing with the active and long term support of our satisfied customers! The product will supply to all over the world, such as Europe, America, Australia,USA, Greece,Zurich, Sacramento.We hope to have long-term cooperation relationships with our clients. If you are interested in any of our products, please do not hesitate to send enquiry to us/company name. We ensure that you can be totally satisfied with our best solutions!