1. Applications: It's applicable to workshops of IT industry, electronics, petroleum and chemiacal industries and the warehouses stacking explosive dangerous cargos; 2. Product introduction: (1). The product is an integral part of the entire curtain wall, which must blend into the wall with the same style, shape and dimension, ensuring the overall beauty of the building; (2). The product has explosion venting function. When there is a possibility of explosion occurred inside the door and the air pressure reaches a preset value, the leaf tripping-off lock of the explosion-venting wall(window)opens automatically to release gas to the outside, thus lowering the inside air pressure and ensure the safety of working personnel at the site, alleviate or avoid the damage of explosion to the buliding.