What does "H400*250*8*12" mean in steel structures?
In the face of fierce market competition, in order to reduce the cost of processing engineering in different places, some large steel enterprises in the development to a certain extent after the gradual implementation of low cost expansion, they started in the country is, for example, in Anhui, Shandong, hang Xiao Henan, Jiangxi, Guangdong, Hebei and other places are equipped with branch, Seiko is also equipped with steel the structure and processing base in Zhejiang, Anhui, Beijing, Hubei, Southeast grid base in Zhejiang, Chengdu, Tianjin and Guangzhou, and as a center for radiation processing of the network architecture, do a good job in the steel industry, built outside the base at the same time, Southeast of the development of the tentacles extended to the steel structure of the relevant industry and other industries, extend the industrial chain, built in Southeast Zhejiang Real Estate Company, Zhejiang southeast Sheet Metal Co. Ltd., Zhejiang Xiaoshan hospital and Hangzhou general building materials system has a high Limited, but to remind the chain layout problems of quality accident in Inner Mongolia power plant in Xinfeng as Xuzhou Feihong and Southeast in the construction accident in Guangzhou University city is worth pondering.
A direct consequence of low industrial concentration is caused by excessive competition, in 2005, the average profit of 5% steel enterprises, in addition, steel tube truss and complicated structure, difficult construction of landmark projects to higher profit margins, as building light steel portal frame, due to intense competition, the profit space is generally low, so only there are some enterprises in order to steal frugal material bidding, so only the sensation of three-dimensional "white paper". But the good news is the processing capacity of 13 million 510 thousand tons of steel structure steel structure association in 2005 statistics, the processing capacity of the top five steel enterprises has more than 1 million tons, the annual top ten enterprises the basic processing capacity in more than 100 thousand tons.
Total domestic steel structure (special) level of construction enterprises 143, an increase of 427 qualification for steel structure, with a qualification for steel structure enterprises amounted to 570! Recently, Shanghai Metal Structure Association statistics data show that in the city of Shanghai Metal Structure Industry Association member units, steel fabrication and installation of enterprises (including some provinces and municipalities) a total of 380, the annual output of 3 million 600 thousand tons, and it is said that only the Shanghai area registered steel construction enterprises reached five hundred or six hundred. The development of steel structure industry, like China history the Warring States period, the steel structure enterprises from dozens to thousands, but with an annual output of 100 thousand tons of enterprises is very small, the formation of the rapid development of the market, and industry concentration is more and more low contrast. The reason is the main steel structure industry low barriers to entry, whether it is money or technical requirements are not too high.
