hoistway造句
Elasticmid-strengthrockwoolboard:usedforheatpreservation,fireproofingandsoundabsorptionforthebuildingwall/roof,suchascurtainwall,innerwallpartitionandelevatorhoistway,etc.Itsolvestheproblemofsteelbeam...
Elasticmid-strengthrockwoolboard:usedforheatpreservation,fireproofingandsoundabsorptionforthebuildingwall/roof,suchascurtainwall,innerwallpartitionandelevatorhoistway,etc.Itsolvestheproblemofsteelbeam...