详细介绍: 保冷红松木块 防腐保冷木块 松木保冷块 浸油保冷木块
DN-公称直径、Ф-外径(镀锌管)
DN15-ф22mm,DN20-ф27mm DN25-ф34mm,DN32-ф42mm
DN40-ф48mm,DN50-ф60mm DN65-ф76(73)mm,DN80-ф89mm
DN100-ф114mm,DN125-ф140mm DN150-ф168mm,DN200-ф219mm
DN250-ф273mm,DN300-ф324mm DN350-ф360mm,DN400-ф406mm
DN450-ф457mm,DN500-ф508mm DN600-ф610mm,
DN-公称直径、Ф-外径(无缝钢管)
DN15-ф18mm,DN20-ф25mm DN25-ф32mm,
DN32-ф38mmDN40-ф45mm,DN50-ф57mm
DN65-ф73mm,DN80-ф89mm DN100-ф108mm,DN125-ф133mm
DN150-ф159mm,DN200-ф219mm DN250-ф273mm,DN300-ф325mm
DN350-ф377mm,DN400-ф426mm DN450-ф480mm,DN500-ф530mm
DN600-ф630mm等型号。
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