In 2017 the national supplier five fuel

Planning requirements, Beijing, Shanghai, guangzhou and other big cities to strict limits on motor vehicle ownership,bridge building ASTM welded steel pipe by encouraging green travel, increasing the use of cost, reduce the strength of motor vehicle use.In addition to control the car, but also reduce the emissions of pollutants. Plan requirements,ASME Spiral Submerged Arc Welding pipe argues vigorously by the end of 2013, the national supply of the four standard gasoline; Before the end of 2014, the national supply of the four standard diesel; By the end of 2015, beijing-tianjin-hebei, Yangtze river delta, the pearl river delta region key city,Longitudinal Welded pipe and tube such as comprehensive supplies automotive gasoline and diesel oil with the five standards; By the end of 2017, the national supply conforms to the five standards of automotive gasoline and diesel.

In addition, by 2017, will eliminate consists of national basic car.Wang yuesi said, motor vehicle pollution has three aspects: oil,scaffolding structural steel tube road, car. The oil is the foundation. "The oil of our country, even the five oil, is distinct, and the five oil quality there is a big problem."

Alkanes in gasoline in our country, he said, is too low, olefins and aromatics. In addition, there are oil companies in order to save costs, illegal use of additives, the quality is very bad, prominent question is more nitrogen oxides and particulate emissions.

Wang yuesi worry about whether the five criteria of diesel vehicles can truly implement, because most of the diesel emission is not qualified. China automotive technology research center, senior engineer Fang Maodong also said that at present our country's most prominent or diesel oil problem, for a period of time in the future should focus on tackling a problem of diesel pollution.

For 3 big cities such as the use of economic measures, such as congestion charging wang yuesi agreed, but he felt, after fees are used for environmental protection or other purposes, should be transparent, "give people a list".