Type B anti explosion window 1. Type B explosion-proof window is a fixed external window of special building that can resist the blast wave from the outside of the building. 2 Key points of selection (1) Type B explosion-proof window frame is stainless steel, and the explosion-proof glass is composed of cesium potassium glass and polymer interlayer. (2) There is a certain proportional relationship between the thickness and size of B-type anti explosion window glass and the anti explosion pressure.