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Mining & quarrying-nonmetallic minerals - Namor Uew
Miscellaneous nonmetallic mineralsNonmetallic minerals svcs except fuelsChemical & fertilizer mining NECPhosphate rockPotash soda & borate mineralsClay ceramic & refractory minerals NECKaolin & ball clayIndustrial sandConstruction sand & gravelCrushed & broken stone NECCrushed & broken graniteCrushed & broken limestoneDimension stone
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