Anhen Aluminum door & window: Bright looking, perfect desigh, exquisite craftsmanship; Equipping with 5mm + 9Air space+5mm or 5mm + 12A+ 5mm clear tempered or 5mm + 26.5A(intelligent blind ) +5mm clear tempered double-glazing ensures better performances of sound-insulating and secuirity; Decorative spacer inside the hollow glass makes the impression from bald to diversiform; Euro standard groove design, layer and casement united; Transmitter and handle driving component indise; Multi-Lock option available, hinged transmission shaft; Open angel from 0 to 90, high-performance of weatherproof; DPEM sealer between frame and leaf employing the equal-pressure and decompression principle ensures high-performance of sound insulation, heat insulation, water proof and airtight.