coated plastic composite pipe
coated plastic composite pipe
包覆塑料复合管
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The flexible pips are made by one kind of steel alloyed and the macromolecule plastic composite pipe (lean pipe). The outer and inner layers of the pipe are coated composite plastics.
线棒——是由一种钢合金与高分子塑料的复合管，其外层与内层均为复合塑料涂层，通过粘合剂与中间层钢合金管道复合成一体的柔性管道。
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