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pvc给水管材|化学视窗
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  • pvc给水管材 - pvc给水管材大小

    pvc给水管材 - pvc给水管材大小

    前言:UPVC给水管与PVC给水管的区别是什么?企业回答:PVC排水管材规格常见有: ;主要以公称外径为主,分别为32m、40m、50m、75m、90m、10m、125m、160m、20m...

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