关于joists的百科

• joists造句怎么写

• Tothosebeams,Iattachedrimjoistsandfloorjoists.Thesebigjoistscanbear.Nostructuralalterationsrequired,easilyfitsbetweenjoistsandrafters.Thebuilderswillhavetostrengthentheexistingjoistswithadditionaltimber.Indoublefloors,itsownceilingjoistsorbearerscarr...
• 2016-12-2725177