Tianjin Dalipu Oil Country Tubular Goods Co., Ltd is currently an emerging production and marketing enterprise based production casing .Located in Tianjin, near the capital Beijing, and Tianjin Port the largest port in north of China, owning convenient transportation, unique geographical conditions.With API 5CT oil casing and API 5L oil line pipe as the main products,with production and sales integration, professional domestic and foreign trade operations, strengthfinancial , rich experiences