Insulated Glass Units combine 2-3 panes with aluminum spacers and dual-seal, argon-filled for U-value as low as 1.0 W/㎡·K and STC≥38 sound insulation. Low-E coating blocks infrared, saving 40% energy. Ideal for green facades, passive houses, and cold storage. Sizes 6+12A+6 to 12+16A+12 with warm-edge tech to prevent condensation. Meets GB/T 11944-2012 and IGCC. Decorative grids, triple glazing and vacuum upgrades available.