12TSW

보랄방화(방화방수)석고보드(두께12.5mm이상, 1ply)
+ 보랄방화석고보드(두께12.5mm이상, 2ply)
+ CH-Stud(두께0.8mm, 75mm)
+ 보랄방화석고보드(두께25mm이상, 1ply)