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Silica flour is a fine powder made from silica sand, a naturally occurring mineral. Silica flour is composed of silicon dioxide (二氧化硅), which is one
Micro Silica Fume can not only be applied to concrete, cement and other crude industries, but now the scientific and technological research has begun to purify
具体的, abbreviated as concrete, is a common material used in construction and widely used in civil engineering. 力量, 耐用性, ETC. are the indexes to measure
