A, B, C district buildings: armoured concrete frame structure. Filling material is clay multi-aperture brick. Indoor and outdoor fitment materials are most water-proofing dopes. They are all non-burning substance.

• 区建筑:为钢筋混凝土框架结构,填充材料为粘土多孔砖,室内外装修材料为防水涂料等,均为非燃烧体。