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In 1950:
Edw. C. Levy Co. contracts with Great Lakes Steel to move
uncrushed slag off Zug Island in River Rouge, Michigan.
In 1954:
McLouth Steel Corp. makes a slag disposal agreement with
Edw. C. Levy Co.
Edw. C. Levy Co. builds two new slag processing plants in
Trenton, Michigan.
Also in the 1950s:

Edw. C. Levy Co. begins additional metal handling and
processing services for steel companies.
Edw. C. Levy Co. develops processes for metal reclamation
from steel-making slag.

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