Minimalist appearance design

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Semi-hidden window sash design，hidden drainage holes
One-way non-return differential pressure drainage device, refrigerator grade heat preservation material filling
Double thermal break structure, no pressing line design

One-way non-return drainage system

Anti-wind | Anti-rain | Anti-insect | Anti-howling

Preventing indoor and outdoor air exchange and convection

Semi-hidden window sash design，greatly improve the sealing

Double-layer self-pressing sealant strip, six turning point corner, better prevent indoor and outdoor air circulation

Exclusive customized heavy-duty push and pull handle

Leading structure design, CRLEER exclusive customization
304 stainless steel material, exquisite surface treatment