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中国管道商务网
3 年
硬聚氯乙烯(PVC-U)双壁波纹管
“三方”牌埋地排水用硬聚氯乙烯(PVC-U)双壁波纹管是以聚氯乙烯为主要原料,加入适量助剂改性,经挤出成型工艺制造而成。主要适用于建筑物 ...
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