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
Preventing indoor and outdoor air exchange and convection
Double-layer self-pressing sealant strip, six turning point corner, better prevent indoor and outdoor air circulation
Leading structure design, CRLEER exclusive customization
304 stainless steel material, exquisite surface treatment