https://wginc.com/cast-iron-vs-pvc-which-material-is-right-for-drainage-systems-in-my-building/
好像城郊喜歡用PVC。紐約市新蓋的房子也是用鑄鐵。
https://wginc.com/cast-iron-vs-pvc-which-material-is-right-for-drainage-systems-in-my-building/
好像城郊喜歡用PVC。紐約市新蓋的房子也是用鑄鐵。
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好像你的理解與我相反。PVC樹根鑽不進,樹根能鑽入管道是因為鐵管繡了,或接頭的地方有些須的縫。
-守月-
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01/10/2023 postreply
10:32:25
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Nobody glues PVC sewage pipes. They can get roots inside too
-borisg-
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01/10/2023 postreply
10:43:10
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為什麽不glue呢?一道簡單的工序而已。
-守月-
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01/10/2023 postreply
11:09:38
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rubber boots.
-borisg-
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01/10/2023 postreply
11:19:24
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就是後院一棵大樹,以後新的PVC也能被樹根破壞?煩人
-red_flower-
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01/10/2023 postreply
11:59:15
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