1, Posca U.S. Posca is a global expert in the field of lubricants, the world's leading brand of anti-wear oil. Landed in China in 2012, in May 2016 to Posca professional oil change center for chain operation, thanks to the product's excellent "anti-wear and oil" characteristics and big data marketing flow model, in just two months in China, north and south of the river quickly opened hundreds of stores, the development momentum is strong. 2, Shell Royal Dutch/Shell Group （Royal Dutch/Shell Group (referred to as Shell Group) was formed by the merger of Royal Dutch Petroleum Company and Shell Transport and Trading Company in 1907. To date, the Shell Group's business has spread to 130 countries around the world, the total number of employees nearly 100,000 people, the business is involved in exploration and production, oil, chemicals, natural gas and power generation, as well as renewable resources, is one of the world's largest energy companies. 3, Mobil ExxonMobil Oil Company, is one of the world's largest multinational oil companies, it was founded in 1866, in more than 100 countries around the world It is a world leader in lubrication technology and produces the world's most advanced engine oils. In the past one hundred years, ExxonMobil has established a good reputation for its standards of excellence, quality products and services.4. Castrol Castrol is a world-recognized lubricant expert, attributed to one of the world's four largest petrochemical companies, BP. It also produces other lubricants that have a direct impact on daily life, such as natural gas extraction, power generation, the transportation industry, construction machinery and vehicles, refrigeration, Metal processing, plastics, as well as a number of Shiqiao marine and general industrial lubricants used. 5, Total Total (TOTAL) is one of the world's four largest petrochemical companies in more than 110 countries to carry out lubricating oil business. May 7, 2003 the global unification of the name TOTAL (TOTAL), back to the rental headquartered in Paris, France. Its by TOTAL fierce Dal (TOTAL), Fina (FINA), Elf (ELF) three brands.