Dongying Kangyu Petroleum Engineering Technology Service Co., Ltd., is located in the beautiful coastal city-Dongying, the base of China'S second largest oilfield-Shengli Oilfield, where the center of Yello River Delta, is a fast-developed and professional international enterprise, which combines reasearch and drading petroleum equipment, technical service for oilfield.Our main business: full package of drilling rig fabrication, series of workover rig, drilling and production tools,OCTG, instruments and accessories, technical service for oilfield etc.