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Razor Stone

均密砂岩

1、细磨石

...细磨轮 fine grinding wheel细磨石 razor stone细磨碎 fine grinding ...

2、均密石英岩

...胶结石英岩 cemented quartzite均密石英岩 arkansas stone; novaculite; razor stone砾屑石英岩 silicirudite ...

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