Heilongjiang North Shuangjia Drilling Tools Co. Ltd.(Sj-Drilling) is a holding company of Heilongjiang North Tool Co.,Ltd. Under China South Industry Group Co. Under the company, there're five Departments, one Administration Office,four Machining Branch Factories and one Heat Treatment Workshop. It is the first-class member in Supply Network of China National Petroleum Corporation(CNPC),the member in material resource market of China Petrochemical Corporation(SINOPEC) and the first-class supplier of China Natinal Offshore Oil Corp.(CNOOC). The company is engaged in design,research and manufacture f new products and it has strong technological capabilities and advanced production equipments.It has passed ISO9001-2000 certification and acquired API Spec7,Spec7-1,Spec7K,Spec5CT Official Monogram Certification. It is high-tech enterprise in Heilongjiang province.At present, we mainly produce oil drilling tools,and more than ten series products have been formed.There're several kinds of products have been used as substitute for imported products in the oilfield all over the domestic. At the same time, our products also exported to international market as India,Philippines,Qatar,Singapore, the UAE,Iran,Oman,Syria,Yemen,Sudan,Cananda,USA,UK,Norway,Russia,etc.It has earned good and wide market reputation.  The tenet and objective of our company is "Manufacturing the highest quality products,providing the best quality service" We desire to extensive cooperate with new and old consumers at home or abroad and all circles of society in products development,technological innovation and marketing,and other fields.And we hope to improve development of oil drilling tools in China and the world through our mutual and unremitting efforts.