BJM 9999/90 Crankshaft Grinders MachineTools. manufacturer & exporter of machine tools including crankshaft grinding machines, valve refacer, cylinder reboring m/c.,line boring m/c, connecting rod boring machine, vertical fine boring m/c, honing m/c, surface grinder etc. we have exported more than 1000 machines in peru, canada, indonesia, australia, turkey,iran, bangladesh, newzealand ...