Our company since its inception, constantly regards product or service high quality as business life, continually improve creation technology, make improvements to product high-quality and consistently strengthen business total high-quality management, in strict accordance together with the national standard ISO 9001:2000 for oil well pdc bit, roller cones for hole opener, pdc and tricone bit factory, EN1092 GATE VALVE,NBR SEAT BUTTERFLY VALVE. Welcome to visit us at any time for business relationship established. The product will supply to all over the world, such as Europe, America, Australia,Sao Paulo, Czech,Tanzania, Angola.If you need to have any of our merchandise, or have other items to be produced, make sure you send us your inquiries, samples or in depth drawings. Meanwhile, aiming to develop into an international enterprise group, we look forward to receiving offers for joint ventures and other cooperative projects.