According to the statistics of the Traffic Management Bureau of the Ministry of Public Security, as of the end of March 2017, the number of motor vehicles in the country exceeded 300 million for the first time, including 200 million vehicles; the number of motorists exceeded 364 million, including 320 million motorists.
The reporter learned that as of the end of March this year, the national motor vehicle ownership exceeded 300 million for the first time, reaching 300,280,590 vehicles. There are more than 10 million motor vehicles in 12 provinces and more than 20 million in Guangdong, Shandong and Henan provinces. In the first quarter of 2017, 8.2 million new vehicles were registered in the country, which was basically the same as that of the same period last year.
At the same time, as of the end of March this year, the national car ownership exceeded 200 million vehicles for the first time, reaching 200,192,782 vehicles, accounting for 66.67% of the total number of motor vehicles. There are 49 cities with more than 1 million cars in the country, and more than 2 million cars in 19 cities, including more than 3 million cars in Beijing, Chengdu, Chongqing, Shanghai, Suzhou and Shenzhen.
In addition, as of the end of March this year, the total number of motor vehicle drivers nationwide has exceeded 364 million, a total increase of 6.83 million in the first quarter, an increase of 2.09%.
Alloy pipe is a kind of seamless Steel Pipe, its performance is much higher than that of general seamless steel pipe, because this type of steel pipe contains more Cr, its high temperature resistance, low temperature resistance, corrosion resistance performance is much better than other Steel pipe, so the alloy pipe is widely used in petroleum, aerospace, chemical, electric power, boiler, military and other industries.
Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low-alloy steels and high-alloy steels. The difference between the two is somewhat arbitrary: Smith and Hashemi define the difference at 4.0%, while Degarmo, et al., define it at 8.0%.Most commonly, the phrase "alloy steel" refers to low-alloy steels.
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