Product Features:

Utilizing EPDM composite sealing strips for excellent sealing properties.

Hot-dipped galvanized square tube frame

Fiberglass Reinforced Panels: Corrosion-resistant, aging-resistant, acid and alkali-resistant

Centered is a 5 cm thick B2 flame-retardant foam board (polyurethane foam board), which can be manually winched or motorized for automatic control.