Catalytic devices, namely, catalytic converters; vehicle exhaust gas treatment equipment comprised of catalyst and their parts and fittings for diesel engines and motors; vehicle exhaust gas treatment equipment comprised of catalysts for automotive internal combustion engines and parts and fittings therefor; catalytic converters for the vehicle exhaust gas and their parts and fittings; catalytic filters for soot and particulate from internal combustion engines and their parts and fittings; catalytic devices, namely, catalytic converters for motors and engines; catalytic devices, namely, catalytic converter units for vehicle exhausts