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火山凝灰岩被广泛用作水泥工业的混合材、建筑的饰面材料和建筑集料。作为一种重要的建材工业的原料矿产,火山凝灰岩已被人
Volcanic tuff is widely used as a blending material in the cement industry, building decorative materials and building aggregates. As an important mineral raw material for building materials industry, volcanic tuff has been