Yantai Ruibang Petroleum Drill Bits Co., Ltd., is an emerging enterprise in the field of petroleum bit in China. Our company have capacity of developed, development, production and salesProducts are mainly used in oil and gas, metal deposits, geothermal fields.We have passed the certifications of ISO9001 and API7-0719 and gained API certificates and emblem use rights.We warmly welcome you to check the specifications of our products. Please contact us with your questions or suggestion.