Built-in accordion baffle prevents rainwater from flowing back to form an independent drainage channel to speed up the drainage of water inside the cavity.

The combination of luxurious EPDM sealing strips and wide isobaric strips tightly connects the door and window profiles, hardware and glass together, achieving heat preservation and a quiet home environment.

All insulation strips and isobaric strips are designed on the same vertical line to achieve high performance sound insulation and heat insulation.

Precision craftsmanship and multiple protection layers designed to protect quality life.