临近月底市场表现迷茫方管厂家多以出货为主本周各重磅消息纷纷落地，期现操作谨慎，而今周五期螺下杀超百点，回到了3820上方；镀锌方管管厂价格由横盘观望转而随行 走弱，市场表现迷茫，操作相对滞后。截至8月2日，济南市场友发4寸(3.75mm)方管价格4260元…

冷镀锌方管是在所用的方管上利用冷镀锌的原理来使方管具有防腐蚀的性能。与热镀锌不同冷镀锌涂料主要通过电化学原理来进行防腐，因此必须保证锌粉与钢材的充分接触，产生电极电位差，所以钢材表面处理很重要。

Cold galvanized square tubes are used to make square tubes have anticorrosive properties by using the principle of cold galvanizing. Different from hot-dip galvanizing, cold-dip galvanizing coatings are mainly anti-corrosion based on electrochemical principle. Therefore, it is necessary to ensure full contact between zinc powder and steel to produce electrode potential difference, so surface treatment of steel is very important.

　　国内方管价格亦或有趋弱可能厂家心态较为积极方管市场价格基本维稳。价格方面：由于期货震荡影响，方管市场价格略受波动，不过好在有利好支撑，各区域价格基本保持坚挺态势。华北区域：在环保迫切趋严情况下，相对于市场仍有一 定的刺激作用，因此方管厂家心态较…