Structure: steel structure.,Floor: emery wear-resisting flooring, no dust, the floor with crack in steel, floor bearing 3 tons/per square meter.,Height: indoor clear height of 9 meters, 12 meters high.,Horizontal column grid size: 12 metres spacing, longitudinal every 25 meters.,Unloading platform: 1.3 meters high, 4.5 meters wide, for the hydraulic lifting platform, door gate of electric industry upgrading.,Unloading area: the single side discharge 30 meters wide, double side unloading 45 meters wide.,Canopy: receiving area 8 meters wide, 4.5 meters high.