波纹瓦;
The corrugated wave tile not only has better bailing effect, but also is firm and stable when two tiles are pressed.
它不但有较好的排水效果,而且两瓦压合时,较牢固和稳当。
Reinforced asbestos-cement middle corrugated tile
钢丝网石棉水泥中波瓦
Asbestos-cement corrugated sheet and ridge tile
GB/T9772-1996石棉水泥波瓦及其脊瓦
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