(1) Inspection workshop (now called office building): reinforced concrete structure, fire resistance class II, building height 18 meters, 4 floors, building area 4091 square meters, fire hazard category C. <br>(2) Production workshop (now called the main workshop): steel structure, fire resistance class two, building height 9.5 meters, one storey, building area 6240 square meters, fire hazard class C.
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