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250510
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250510
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United States
250510
Silica sands and quartz sands:
Details
Parent HS6
250510
Sands; natural, silica and quartz sands, whether or not coloured
Related United States Codes
250510
Silica sands and quartz sands:
2505101000
Sand containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron
2505105000
Other