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Wbs E Amples For Crushing

There was a dramatic increase in primary lead production from domestic areas, beginning in 1969 thousands of thousands of year metric tons year metric tons 1965 273 1972 562 1966 297 1973 547 1967 288 1974 602 1968 326 1975 564 1969 462 1976 528e 1970 519 1977 488e 1971 525 this coincided with the commissioning of the first mine in the.

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