PIR固定管托(tuo)適用(yong)(yong)于輸(shu)送-200°C~+ 150°C冷(leng)(leng)凍介質的各(ge)種規(gui)格管道。保冷(leng)(leng)管托(tuo)加(jia)裝(zhuang)了隔(ge)冷(leng)(leng)墊層(ceng),隔(ge)冷(leng)(leng)墊層(ceng)采(cai)用(yong)(yong)經防腐防火處理(li)的硬木、或(huo)高密(mi)度(du)聚氨酯(zhi),使保冷(leng)(leng)層(ceng)、防潮層(ceng)形成整體