国内方管价格或将弱势运行为主成交总体一般方管市场价格继续下跌为主，今日唐山小窄带价格开盘较昨持稳，主流报3680元/吨，整体市场出货困难，厂家为求出货，累降30，降后整体市场成交 量偏弱，只有及个别厂家出清日产，昨日唐山地区钢坯价格回落，今日期…

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.

　　莱芜方管厂家成交方情况不容乐观价格小幅下调莱芜方管价格小幅下调，成交较差。目前上述价格为方管厂的结算价格，莱钢集团表示，目前山东市场莱钢集团接单情况不是乐观，方管厂家表示由于家电和汽车行业目前处于瓶颈期，对于方管市场成交情况影响较大。厂家方面，…