Facility installation drawing 1.Shuangyang turbo exhausting fan 2.The base is pressurized by waterproof glue mud, designed according to workshop's pitch avoid leaking 3.Up fold the armor plate edge 4.Down fold two sides of bottom plate, it stride meets the wave crest of the armor plate in room surface. 5.The upper end of the bottom plate extends into the ridge cover plate 6.Down fold the bottom of bottom plate to connect the armor plate in room surface. Note: All kinds of supporting shapes are designed according to workshop's pitch.