Tianjin Ring-Top Petroleum Manufacture Co., Ltd. is a professional oil drilling equipment manufacturer. Tianjin Ring-top Petroleum Equipment Co., Ltd is a specialized in the researching and manufacturing API standard energy saving pumping unit, with 3000 sets manufacture capacity every year. Due to its reliable and excellent service, our products have been sold not only in main land China, but to America, Canada, Thailand and In 2006, we developed a new modern drill pipe manufacture assembly line, with its capacity of 16000 T drill pipes per year. All its procedures are according to API Certificate requirement.Lately, the company has successfully cooperated with CNPC developing a new-era innovative product which can greatly lift the industry drilling speed for oil and gas well. This new product has been totally success during the test in Yumen Oilfield, China, it will tremendously promote the drilling industry, of course.