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Wood window

Features:
Pure wood windows select excellent laminated wood, adopt CNC processing center produced by Germany Weinig Corporation and imported raw and supplementary materials, making them own wind pressure resistance, water tightness,
air tightness, heat insulation, sound isolation and environmental protection.
Pure wood windows include 68 series inward opening windows (window thickness 68mm) and 90 series outward opening windows (window thickness 90mm). The following are standard design specifications:

Max. leaf division dimension:
	■　Casement window: 450mm ≤leaf width ≤850mm, 500mm ≤leaf height ≤1,600mm ■　Casement top-hung window: 450mm≤ leaf width ≤850mm, 500mm ≤leaf height ≤1,600mm ■　Top-hung and hopper windows: 500mm≤ leaf width ≤850mm, 500mm ≤ leaf height ≤ 1,600mm ■　Vertical hinged doors: 500mm≤ leaf width ≤900mm, 1,700mm≤ leaf height ≤ 2,400mm ■　Sliding doors: 750mm≤ leaf width ≤1,200mm, 1,700mm≤ leaf height ≤2,400mm ■　Folding doors: 500mm≤ leaf width ≤900mm, 1,700≤ leaf height≤ 2,200mm
	Shape Standard:
	■　Arc window radius limit: Jamb radius ≥200mm, mullion radius≥ 300mm; ■　Arc door radius limit: Jamb radius ≥300mm, mullion radius≥ 300mm; ■　For the heterotypic windows composed of straight flanges, the height of the short straight flanges shall be more than 500mm and the frame angle at sharp corner shall be no less than 60°; ■　The arc window shall not be opened from the arc part.
	Product Inspection:
	■　Wind pressure resistance: GB/T7106-2008 Level-IX (5.0 kpa) ■　Air tightness: Positive pressure GB/T7106-2008 Level-VIII ■　Negative pressure GB/T7106-2008 Level-VIII ■　Water tightness: GB/T7106-2008 Level-VI (700 pa) ■　Coefficient of heat transfer: k=2.1 W/ (㎡·K) ■　Heat insulation performance: GB/T8484-2008 Level-VI