发布时间:2025-01-24 06:38:50
pvc排水管首末端,分支端吊卡安装尺寸是安装间距不应大于2米。根据查询相关公开信息显示室内PVC排水立管管卡间距0.1m左右,支管排水导管管卡的安装间距不应大于2米,另室外直管段长度大于4米时,应安装伸缩管,确保每段内净长≤4米,暗装立管的分支管管径Φ≥100㎜时,按设计防火等级要求,安装阻火圈。
请问168平方的花园开挖12cm后碎石回填再地面找平费用为93189元装修公司报的费用贵不
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