We, Tianjin Qihua Changsheng Oil Drilling Tools Sales Co., Ltd., one of the leading suppliers for the oilfield equipments & OCTG products here in China, was established in 2002, and now has grown up to a star company which is not big but very strong in this field with our persistent effort step by step in the past years. We are specialized in the oil tubular products, wellhead assembly& X-tree, down hole drilling tools, and other accessories. All of our products are manufactured under API standard and maintain an ISO 9001 registered Quality Management System for the design and manufacture of all our products. Our products have been exported to 11 countries& areas around the world, 80% of our existing customers have done the business with us by more than 5 times, no one-off customer. We will continue to expand our range, and win more customers’ trust with our better and better performance.