
May 04, 2018 · Fine sand: its fineness modulus is 2.2—1.6, the average particle size is 0.35—0.25 mm. Super-fine sand: its fineness modulus is 1.5一0.7, the average particle size is below 0.25 mm. LZZG is a professional manufacturer of all kinds of stone and sand processing equipment. We provide various sizes of sand production line and stone production
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