Chinese steel industry has developed rapidly during the past 10 years, has become the world's largest amount of steel, manufacturing construction strongest, the first industrial-scale, enterprise-scale steel big country first. Steel Enterprise: Must be "second five" successful development of major steel works around the building, indicating the overall technological level of China's steel structure has been in the international advanced level. However, China's steel industry in information technology, automation, standardization, innovation, research, compared with developed countries, there is still a gap. 2011 is the national "five" plan years starting in Dongguan steel structure engineering design, the relevant state ministries, industry associations and business groups, steel companies are conducting research, analyzing the market and future trends. National Development and Reform Commission, Ministry of Industry, Science and Technology is also being studied to determine the relevant strategic new industries and planning objectives of the international advanced level, independent innovation ability, strong international competitiveness and to be able to occupy more market industry, will be included in the planning and give support policies. Opportunities and challenges, China's steel industry, whether on the stage, on the scale of development is essential, "Twelve Five" period. Disadvantages Disadvantages steel construction quality problems (a) the complexity of the complexity of the steel project construction quality problems, mainly in the range of factors that lead to quality problems, the cause of quality problems are complex engineering stream steel manufacturers, even if the quality is of the same nature, and sometimes not the same reason, to analyze, judge and deal with quality problems adds to the complexity. Such as welding cracks, which can occur in the weld metal, heat affected may also occur in the base material, either in the weld surface, but also within the weld; fracture strike parallel to the weld can also be vertical to weld steel manufacturers, cracks can be either cold cracks, the cracks may be hot; also causes improper selection of welding materials and welding preheat or post-heat inappropriate points. (B) the seriousness of the seriousness of the steel project construction quality problems in: In general, the impact of construction carried out smoothly, resulting in schedule delays, increased costs, serious, building collapse, resulting in personal injury, property damage, causing adverse social impact. Dongguan best steel manufacturers, Peng Jian steel (certified), steel manufacturers, Ltd. Zhongshan, Dongguan City, Peng was built by steel. 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.