Compared with a solid-wall pipeline, the double-walled plastic pipeline has the advantages of material consumption saving, light weight and convenient construction, transportation and storage.
同实壁管材相比节省材料消耗，重量轻，便于施工、运输、储存。
Compared with a solid-wall pipeline, the double-walled plastic pipeline has the advantages of material consumption saving, light weight and convenient construction, transportation and storage.
同实壁管材相比节省材料消耗，重量轻，便于施工、运输、储存。
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