unique drainage system design with better water tightness, air tightness and wind pressure resistance;
the frame is wide, several handles are available to achieve smooth and comfortable opening;
reasonable cavity design meets the strength requirement and improves the processing efficiency;
integrated two-layer structure, when realizing ventilation, the screen window can be provided with multi-point lock to prevent theft and four harmful insects;
the window sash can be opened both inside and outside.
polyurethane foam and neutral silicone sealant fill the glass rim seamlessly around the frame. after sound absorption treatment, the sound wave can be weakened effectively, so that the window system has double sound insulation protection.
|anti wind pressure||8级 4.5≤p3<5.0|
|water tightness||5级 500≤△p<700|
|sound insulation||3级 30≤rw ctr<35|
|thermal insulation||6级 2.5>k≥2.0|