CHINA WELONG PETROLEUM EQUIPMENT Co., Ltd. established in 2001, mainly operating manufacturing, sourcing and processing of Oil drilling equipment & Oil production equipment. Our products include Drilling rig, downhole drilling tools, Oil extraction equipment and other service tools used in oilfield. All of our products are confirmed to API standard, with advanced technology, production facilities, scientific detection methods, good quality management systems and all the joint efforts of our staff, we have become a major supplier of drilling tools for all Chinese onshore and offshore oilfields, our products are being sold to America, UK, Netherlands, Kuwait, United Arab Emirates, etc. With the best price and the excellent quality, we are gaining more and more customers in petroleum drilling & extraction industry from home and abroad. WELONG has complete systems of development and research for quality insurance. It possesses the capability for large-scale machinery processing, design of non-standard equipment, manufacturing and installation. We are very glad to establish business relations with you, as we believe that our competitive price and best quality will be the most attractive factor for you and your customers. It is certain that you will find large benefit from our cooperation.