冶金、矿山等行业所用湿磨机衬板的服役条件十分恶劣，既要承受冲击，又要承受腐蚀和磨。
Lining board used in the wet-grinding machine at metallurgical mines works under very bad conditions. It has to bear impact, corrosion and wear.
把电阻线绕在无硷性耐热陶瓷件上，外面加上耐热、耐湿及耐腐蚀之材料保护固定而成。
Wire wound resistors are made by winding the resistance wire on the alkali less ceramic core, then coated with noncorrosice, heat-proof and humidty proof material.
低碳钢都使用环氧沥青层在其表面镀上湿膜，用以防止生锈或腐蚀。
Mild Steel reservoirs are coated on all wetted surfaces with a epoxy-tar layer to prevent rust or corrosion.
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