The result of your conversion between pound/cubic yard and Copper appears here
To convert between Pound/cubic Yard and Copper you have to do the following:
First divide 0.45359237/((0.0037854118/231)*1728*27) / 8906 = 0.00006662
Then multiply the amount of Pound/cubic Yard you want to convert to Copper, use the chart below to guide you.
Symbol: lb/yd³
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Symbol: copper
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