For penetrating sealing on fully cured concrete surface, the surface must be clean before coating. The standard of coating weight is the surface just be covered.是什么意思_For penetrating sealing on fully cured concrete surface, the surface must be clean before coating. The standard of coating weight is the surface just be covered.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句