Our progress depends around the innovative machines, great talents and consistently strengthened technology forces for Rod Bop, Tubing Pup Joint, China Octg Coupling, Drill Collar,Api 5ct Couplings. We've been not pleased while using the present achievements but we are trying finest to innovate to satisfy buyer's much more personalized needs. No matter where you will be from, we have been here to wait for your sort ask for, and welcom to go to our manufacturing facility. Choose us, you can meet your trusted supplier. The product will supply to all over the world, such as Europe, America, Australia,Riyadh, Portugal,Plymouth, Saudi Arabia.We have been making our products for more than 20 years . Mainly do wholesale , so we have the most competitive price , but highest quality. For the past years , we got very good feedbacks , not only because we provide good products , but also because of our good after-sale service . We are here waiting for you for your inquiry.