Opening style: inward or outward as customer’s need, better air tightness, acoustic insulation and water resistance

Elegant style, energy and space saving, heat insulation and sound-insulation

Economic and reasonable structure, good water proof

Glass: safety glass with double glazing or frosted glass, insulating glass,

floating glass, etc.

Sound insulation: Rw≥28db

Wind pressure resistance : P≥5000Pa

Water resistance: P≥500Pa