W.R. Grace bought the vermiculite mine in Libby in 1963 from the Zonolite Company. More than 1.5 billion pounds of raw contaminated ore was sent to processing plants across Canada. From a third to a half of the vermiculite from this mine was sold as attic insulation from the 1940s until 1984, when its sale by the company was discontinued.
Read MoreW.R. Grace bought the vermiculite mine in Libby in 1963 from the Zonolite Company. More than 1.5 billion pounds of raw contaminated ore was sent to processing plants across Canada. From a third to a half of the vermiculite from this mine was sold as attic insulation from the 1940s until 1984, when its sale by the company was discontinued.
Read MoreSeller 6t oil fired Boiler Kazakhstan 4t Diesel Boiler Brand Supplier Commercial Azerbaijan. 4 ton coal fired industrial steam boiler price /for sale. the boiler modle:DZL4-1.25-AII the boiler 6t Coal Fired Boiler Machine Dealer Kazakhstan 6t Coal Fired Condensing
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