广州本地镀锌方管价格弱稳运行厂家让利出货为主…广州镀锌方管市场价格下行为主 。市场方面，期螺2005午间收3252，跌263跌幅7.48%。早盘以跌停价3233开盘，略拉起，最高3294，持仓减1.4万手，短期弱势。受 早盘期螺弱势运行影响，方管厂家让利出货为主，现南钢主…

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.

　　日国内方管市场或将窄幅盘整运行厂家挺价意愿渐…国内方管稳中下行，今日唐山145小窄带价格开盘较昨持稳，部分小窄带厂家对于市场都有较为保守的态度，加之今日期货市场震荡，无奈在前 期“跳水”行情下，震荡回调显得有些杯水车薪。本月初以及上周，145方管受环保炒…