Kerui Group is a pioneer in designing and manufacturing of drilling equipment and engineering services for oilfields, which was established in 2001 and the headquarters lies in Dongying , Shandong , China . Our relationship with Kerui is what keeps us going. The workshop area is 1.6 million square feet with 180 sets of various processing equipment. Kerui has been granted API and ISO9001:2000, the license of overseas Oil and Gas Services issued by the China Ministry of Commerce.