ABRASIVE BLAST CLEANING SYSTEMS PRIMARILY COMPRISING ABRASIVE BLAST CLEANING MACHINES AND NOZZLES

NON-ELECTRIC INITIATORS FOR EXPLOSIVES SPECIFICALLY DETONATORS AND SIGNAL TUBES FOR TRANSMITTING FIRING SIGNALS TO THE DETONATORS

BLASTING MACHINES FOR USE IN THE IMPACT SURFACE PREPARATION AND FINISHING OF ARTICLES; AND PARTS AND FITTINGS

nonelectric surface delay systems for use in blasting applications