亚洲彩票最大平台

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ZUICHANGYONGDETIANGOUCAILIAOWEI1.2mm、2mmHUO2.5mmHOUBUXIUGANG；3mmHUO5mm

厚亚洲彩票最大平台:321不锈钢厂家；要根据建筑的重要性，造价，所使用的其他材料的等级综合考虑。一般民用建筑天沟深度不要小于250mm，根据屋面板底与屋架顶的净空公道确定，要考虑天沟调坡需要的空间。确定宽度时考虑一下两个因素：首先，要计算排水是否能通 过；第二，常用的天沟板宽为1.0m、1.2m和1.5m三种规格，尽量公道利用板材，要求高的建筑必需将不锈钢天沟设计为可伸缩的。