Composite stainless steel tube stranding , HDPE inner sheath, medium carbon steel wire armour, Ditumen coating , polypropylene yarn wrapping covering.

  • 不锈钢管光纤单元绞合, 聚乙烯绝缘内护套, 钢丝铠装, 沥青浇灌, 聚丙烯绳外被.

  • 互联网摘选 2025-01-19 10:18:58

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