KERUI Holding Group is located in the hinterland of Shengli oilfield , is a comprehensive industrial group integrating high-end petroleum equipment research, development and manufacture, integrated oilfield engineering technological service, and oilfield EPC contracting. KERUI is the largest manufacture and service provider of oil and gas equipments in China, has more than 8000 employees and 2.4 million square meters of high-end petroleum equipment industrial park, has established 16 R&D centers in headquarter, Beijing, Shanghai, Singapore, Houston, Calgary, etc. KERUI has branches, subsidiaries, offices and parts warehouses in 57 countries and regions worldwide, whose business covers more than 80 countries.