PE water supply pipe with a traditional steel pipe, PVC water pipe text ethylene products.

给水用PE管材是传统的钢铁管材、聚氯文字乙烯饮用水管的换代产品。

youdao

PE water supply pipe with a traditional steel pipe, PVC water pipe text ethylene products.

给水用PE管材是传统的钢铁管材、聚氯文字乙烯饮用水管的换代产品。

youdao