Although early development process Editing Chinese iron structure has outstanding achievements, but because 2,000 years of feudalism bondage, science developed, therefore, long-term stay in the horizontal iron buildings. Until the late 1800s, China began using modern steel. After the founding of New China, the steel structure of the application has been greatly developed, both in quantity and quality, or far more than in the past. Light steel floor by cold-formed steel or composite beam, floor OSB structural panels, support, connectors and other components. The materials used are OSB, cement fiberboard steel and plywood. In these lightweight floor surface can withstand the load of 316 to 365 kilograms per square meter. Steel (13) the number of steel construction, marking the economic strength of a country or a region and economic level of development. After entering the 2000 steel welders, significant growth of the national economy, national strength steel loft manufacturers, steel production has become a world power, proposed to "positive, rational steel" in the building, from the get rid of the "restricted use steel "bondage, steel construction in economically developed areas gradually increased. Especially after 2008 years ago, steel construction, under the impetus of the Olympics, there has steel construction boom, strong market demand, and promote the rapid development of steel construction, built a large number of steel stadiums, airports, railway stations and high-rise buildings, Among them, some steel building a world-class level, such as the Olympic Games in the National Stadium and other buildings in the fabrication and installation techniques. Upstream steel industry raw materials such as iron and steel industry, the steel industry supply of steel is the material basis of industrial development, technological advances for the steel structure of the steel industry has created favorable conditions for the application. The domestic steel industry, some large companies have begun research and development building structural steel varieties and technologies, have developed a high-strength steel and fire-resistant, weather-resistance, water, anti-lamellar tearing resistance at low temperature steel, as well as H-beam, high performance pre-painted steel, cold-formed steel, etc., for the development of steel industry has laid a good foundation for the application. Attic steel manufacturers, Peng Jian steel (certified), steel supplied by Steel Co., Ltd., Dongguan City, Peng Jian. Steel Co., Ltd., Dongguan City, Peng Jian (dgpengjian.cn) is Dongguan, steel leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Peng leader in steel construction with the staff warmly welcome all inquiries negotiations to create Peng build a better future for steel.