- Elasticmid-strengthrockwoolboard:usedforheatpreservation,fireproofingandsoundabsorptionforthebuildingwall/roof,suchascurtainwall,innerwallpartitionandelevatorhoistway,etc.Itsolvestheproblemofsteelbeampositiontobethroughandlocaldesignofsuchstructuresa...
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