SEF Drilling Supplies Co., Ltd. is a reliable supplier for oil drilling equipments with good after-sales services. Our supply range mainly as follows: Solid control equipments(mud pump, sand desilter), Hydraulic power tongs, Downhole/Fishing tools, Wellhead tools(casing head, tubing ...

Shandong Zhaoxin Oil Tools Co., Ltd. of Dongying City is located in the hinterland  beautiful Yellow River Delta --- normally called “ Petroleum City”. The company, which conducts scientific research, development, manufacture, sale and after service,  one enterprise ...