聯(lián)合保護(hù)是目前地下管道, 金屬構(gòu)筑物防腐的重要方法之一.It is of important way of anticorrosion of underground pipeline, metal building.是一種經(jīng)濟(jì)型的中短期防腐的保護(hù)涂料.It is an economically protective coating with short to medium terms anticorrosion.除了能夠增強(qiáng)口感之外, ...