Kinhangsand
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Model Material

Quartz Sand

Quartz Sand

2011-7-18
Casting sand: 98-98.6% SiO2 content Fe2O3 content 0.03 0.08%, the particle size 20, 30 orders a 40 orders a 50 yard, and 40 eye a 70 mesh, 50 eye a 100 mesh, 70...
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