YKKAP window saccisi: Drawing window Episode [Low-E multilayered soundproof glass] 2 built 2×4 process[Low-E transparent 5mm+ transparent 3mm]:[width 1640mm × height 1845mm]
YKKAP窓サッシ 引き違い窓 エピソード[Low-E複層防音ガラス] 2枚建 2×4工法[Low-E透明5mm+透明3mm]：[幅1640mm×高1845mm]