CRUSHER Roc Impact and Equipment for mines and quarriesJaw crusher, Cone crusher, Impact crusher. . ROC IMPACT is a French company with facilities in Europe and Africa that manufactures and installs crushing,.jaw crusher french, J50 and C38 crushers' go French - Aggregates Business .'s J50 jaw crusher and C38 cone crusher working together at a . a crucial role in the continued success of a French family quarrying business.