Big Oak Coal Corp · Tipo de accidente, sin lesiones
ROOF FALL 130X20X8 AREA WAS BOLTED WITH 4I IN ROOF BOLTS THERE WAS A STREAK OF COAL APP 6 FT UP
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ROOF FALL 130X20X8 AREA WAS BOLTED WITH 4I IN ROOF BOLTS THERE WAS A STREAK OF COAL APP 6 FT UP
STRAIN TO LOWER BACK WHILE SETTING PUMP