• Aluminum alloy 6063A-T5 features outstanding anti-corrosion, high toughness,little deformation,dense texture
• Equipressure stucture realizes high water tightness
• Tripple sealing by EPDM seal strip improve air/watertightness greatly
• Germany fittings HOPO or SIEGENIA assures smooth operation and durability
• Steel plates combining with corners reinforce the solidity of window corner
• Insect screen is optional
• Interior and exterior color is optional