<p>Established in 2004, Beijing Dehaibei Sci-Tech Development Co., Ltd. is a professional manufacturer engaged in the research, development, production, sale and service of oil refining, oil product blending, etc. After years of development, our company has become a modern enterprise with more than 10 professional technical engineers and about 100 skilled employees. We have successfully developed nonmetal anti-explosion agents, manganese base gasoline antiknock additives, composite octane-enhancing additives of MMT series, Diesel...Read More 