Profile: Hailong Petroleum Industry Group Co., Ltd of Companies focuses on petroleum and natural gas industry. We are engaged in the production and processing of petroleum tubular, petroleum equipment and precision instrument, coating and internal & external anti-corrosion treatments of tubular and equipment, production of coating materials and other petro-chemical materials. Our drilling tools include petroleum drill pipe, drill collar, heavy weight drill pipe, tubing and casing, pipeline, special coating material, precision instrument and petroleum drilling & exploration equipments.