TIANZUO OIL EQUIPMENT GROUP is an international enterprise specialized in manufacturing and distributing professional petroleum equipments and accessories. With headquarter located in Shanghai, our production base is in Tianjin, the most important seamless carbon steel and alloy steel tubes distribution center in China. TIANZUO operates comprehensive range of equipment production line, including Petroleum Casing Pipe, Conveyance Fluid Pipes and Drill Pipe. Over the years, we continually improving our standard and have successfully serve markets within the region and all over the world. Our expertise gained worldwide recognition with the award of API Certificate. TIANZUO� one-stop purchasing service is also renowned in the industry. We are committed and are ready to serve all different petroleum specialty needs of our valuable customers.