On August 7, China Machinery Industry Enterprise Management Association released the 2013 China Machinery Top 500 Research Report and the World Machinery Top 500 list, among which SAIC, FAW and Dongfeng Motor were ranked in the “China Machinery Top 500 Research Reportâ€. The top three. At the same time released in the 2013 "World Machinery 500", 60 Chinese machinery companies were selected. The event was jointly organized by the Machinery Industry Economic Management Research Institute and the World Managers Group.
Sun Bohuai, chairman of the China Machinery Industry Enterprise Management Association, released a report that included a total of general equipment manufacturing, transportation equipment manufacturing, electrical machinery and equipment manufacturing, special equipment manufacturing, instrumentation and cultural office machinery manufacturing, metal products, and comprehensive categories. 500 companies from seven industries were selected, among which the transportation industry was the largest in transportation industry, with 139, accounting for 27.80% of the top 500; the electrical machinery and equipment manufacturing industry and general equipment manufacturing industry each had 126 The households were selected to be smoked by 25.20%. Among them, Brilliance Auto, Weichai Holding, TBEA, GAC Parts and Guangxi Yuchai became the best performing companies of the year.
According to the survey data of the World Manager Group, the sales revenue of the “China Machinery Top 500†companies in 2013 totaled 68,271.19 billion yuan, an increase of 8.52% over the previous year; the total profit was 564.422 billion yuan, an increase of 13.96% over the previous year. It can be seen that in the complicated domestic and international economic environment, the Chinese machinery industry consolidated and expanded the results of the response to the impact of the international financial crisis, and the production and sales achieved steady growth, but compared with previous years, the profit growth rate declined. For the Chinese auto industry, it will usher in the next golden decade, and its own brand will complete the development process from “Made in China†to “Created in Chinaâ€.
"World Machinery 500" is currently the world's first comprehensive comparison of the world's machinery companies. This year, a total of 60 enterprises in China were selected. Among them, the top three mainland companies are SAIC, FAW and China Ordnance Industry Group, ranking 20th, 28th and 30th respectively.
The camshaft is a component in a piston engine. Its function is to control the valve opening and closing action. Although in the four-stroke engine camshaft speed is half of the crankshaft (in two stroke engine camshaft speed is the same as the crankshaft), but usually it's speed is still high, but need to bear a lot of torque, so the design of a high requirement on the camshaft in terms of strength and support, the material is special cast iron, occasionally also have the use of forgings. Because the valve motion law is related to the power and running characteristics of an engine, the design of camshaft plays a very important role in the design process of engine.
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