樓主: 老瓜在路上
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怎么才能測量這段管道是否有堵塞的問題? |
點評
https://www.amazon.cn/dp/B0BN16V95L/ref=zg_bs_121959071_sccl_2/458-1206367-7835248?th=1
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點評
挖槽,電焊可以實現(xiàn),但是成本高
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