David A Stepanko
David A Stepanko
Box 670
Calmar
Alberta T0C 0V0
Phone: 780 985 2110 cell 780 498 2810
David A Stepanko
Box 670
Calmar
Alberta T0C 0V0
Phone: 780 985 2110 cell 780 498 2810
In the past 60 years, the per capita consumption of aggregate has increased from 3.5 tonnes per year to 12 tonnes annually.
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