During the construction of rock wool insulating tubes with different materials domestic-demand waterproof shell.
施工时岩棉保温管外需加不同材料的防水外壳。
While silicate glass wool rock wool can also be made of cotton insulation composite shell.
同时岩棉亦可与玻璃棉硅酸铝棉复合制成保温管壳。
While silicate glass wool rock wool can also be made of cotton insulation composite shell.
同时岩棉亦可与玻璃棉硅酸铝棉复合制成保温管壳。
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