Copper Crusher Gauge | Crusher Mills, Cone Crusher, Jaw ...
50,000 cup is 50,000 PSI obtained with the copper crusher gauge. 50,000 lup is 50,000 PSI read with the lead crusher gauge. CUP vs. PSI – The Firing Line Forums. There are three Piezo methods, the copper crusher method and the strain gauge method. Of the three, the strain gauge method actually produces the lowest