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                • 5-10mm高料石子厂家直销
                  5-10mm高料石子厂家直销

                  产品介绍:花岗石是一种由火山爆发的熔岩在受到相当的压●力的熔融状态下隆起至地壳表层,岩浆不喷出地面,而在地底下慢慢冷却凝固后形成的构造岩,是一种深成酸性火成岩,属于岩浆☉岩(火成岩)。花岗石以石英、长石和云母为主要成分。其中长石含量为40%~60%,石英含量为20%~40%,其颜色决定于所含成分的种类和数量。岩质坚硬密实。...