ventilating brick 多孔通风砖; 通风玻璃砖; 通风空心砖; 通风砖 ventilating bronchoscope 通气支气管镜 .
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glass ventilating brick 通风玻璃砖
gla ventilating brick 通风玻璃砖
ventilating brick wall 通气砖墙
glass s ventilating brick 通风玻璃砖
ventilating e brick 通风玻璃砖
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The ventilating brick is aslant arranged on the permanent layer at the bottom, and the ventilating surface of the ventilating brick is consistent with the surface of the working layer.
本实用新型所述透气砖倾斜设置在底部的永久层上，其透气面与工作层的表面高度一致。
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