roof covering material 中文意思是什麼
roof covering material
解釋
屋頂覆蓋層材料-
It can be mixed with thermoplastic trsiin to produce sound insulation material and sheet materials such as cushion, road covering sheet, water - proof layer for building s roof, etc
膠粉與熱塑性樹脂混合生產片材,如製作墊毯,道路鋪板,屋頂防水層和隔音材料等。
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