Prospects Information Industry Research Institute "2014--2018 China's steel structure industry Market Outlook and Investment Planning Analysis Report" [6] analysis, steel structures, "five-second" period, to get policy support steel industry is expected in the marine engineering fields, houses and bridges flex its muscles to achieve doubling production. Impact toughness of steel means steel in impact load, steel shed, an ability to absorb fracture during mechanical kinetic energy, steel factories, steel is a measure of resistance to impact load cut effect, probably due to low temperature, stress concentration, which led to A mechanical properties of brittle fracture. Usually by standard impact test specimens to obtain toughness index of steel. Steel, Guangxi Yinhe, steel warehouses supplied by Guangxi Yinhe metal structure Engineering Limited. Steel, Guangxi Yinhe, steel warehouse Guangxi Yinhe metal structure Engineering Company Limited (www.gxmmr.cn) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, For the latest information, contact: Mr. Sun.