In more than 30 years of development, the company has always placed the product quality and safety at the top of its management work. It has certified by the Internationally Recognized Quality Management system (ISO9001), the Environment management System(ISO14001) and the Occupational Health and Safety Assessment Series(OHSAS18001). Furthermore, it has won the trust and praise of china National Petroleum Corporation, China Petrochemical Corporation, Yantai Wanhua Chemical and other countries and regions like South Korea, Japan, Russia and the middle East.