Construction; size ranges; schedules of glass sizes and daylight areas; suspension of the sashes by (a) cords or chains and weights, (b) spiral balance devices, or (c) spiral balance devices together with the opening of the lower sash for cleaning. The windows are available with or without astragals or with astragals in the upper sashes only.
BS 644-3:1951
Original price was: $264.16.$132.00Current price is: $132.00.
Wood windows-Wood double-hung sash and case windows (Scottish type)
BSI Group , 08/27/1951
Pages: 26
