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Flushing of a gas valve made during maintenance preparation may have led to the deadly explosion at the U.S. Steel Clairton Coke plant.
An explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured more than 10 others. The CEO has vowed ...
Two people were killed and 10 others were injured in an explosion at the U.S. Steel Clairton Coke Works plant on Monday.
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