According to the site survey data that the domestic steel square tube action, up to January 18, 2013, the total stock of domestic major steel a social week ago, an increase of 329,000 tons of square tube production, which is already the fifth consecutive week of gains. But the overall total inventory declined slightly compared to last year there. Total domestic rebar increase social stock is more obvious, perhaps by the impact of favorable policies square tube sales, the major domestic market has increased the number of traders purchase goods store, prepare for next year's spring, ushered in a good start. The main area stocks rose for the northern region, Shenyang, back to Beijing, the larger the increase in Wuhan, while total social stock East China and South China to drop the main. Galvanized square tubes from the production process is divided into hot galvanized square tube and cold galvanized square tubes. It is because of these two galvanized square tube plus they are not the same as it created a lot of different physical and chemical properties. In general they have a lot of difference between strength, toughness and mechanical properties in. What is the square tube | Show Bo commerce (online consultation) | Huainan square tube provided by the Hefei exhibition Bo Trading Company. Hefei Show Bo Trading Company (www.hfzhanbo.com) (www.hfzhanbo.com) is Hefei, steel leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. In the exhibition of Commerce Bo leadership with the staff warmly welcome all inquiries negotiations to create the exhibition of Commerce Bo better future.