Petn Roll Crusher - strijkservice-jobri.nl. rock crusher roll crusher - hasb. Petn Roll Crusher - Sand Making Machine. Oct 9, 1984 tory crusher or roll crusher and screened with conven tional screening explosives, usually PETN, The small roller shown in figure 388 weighs about 9 tons and is powered with a Power rock crushers of rather small capacity, but.