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聚氨酯保溫(wen)管道(dao),全稱(cheng):高密度聚乙烯塑料(liao)外護(hu)聚氨酯泡沫預制直埋(mai)保滲友溫(wen)管
聚氨(an)酯直埋保(bao)(bao)溫(wen)管(guan)安裝、直埋保(bao)(bao)溫(wen)管(guan)怎么補口?
鋼(gang)套鋼(gang)蒸汽保溫管的保溫結構(gou)可(ke)以根據(ju)滑(hua)動(dong)方式(shi)的不同來分為兩大類(lei):
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聚氨(an)酯保(bao)溫管(guan)道,全稱:高密度聚乙(yi)烯塑料(liao)外(wai)護聚氨(an)酯泡(pao)沫預制直埋保(bao)滲友(you)溫管(guan)
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