MOTORS AND ENGINES FOR LAND VEHICLES; COUPLING AND DRIVING BELTS, TRANSMISSION MECHANISMS, CLUTCHES, COUPLING AND TORQUE CONVERTERS FOR LAND VEHICLES; FRICTION FACINGS AND ANTI-FRICTION FACINGS, SHOES, PLATES, JAWS, DISCS, BANDS, COVERS AND ROLLERS, ALL BEING PARTS OF OR FOR USE WITH LAND VEHICLE BRAKES; TRUCKS INCORPORATING CONCRETE MIXERS; EMISSION CONTROL DEVICES AND ANTI-POLLUTION THERMAL OBTURATOR DEVICES, ALL FOR THE EXHAUST GASES OF LAND VEHICLE ENGINES; SAFETY BELTS FOR THE SEATS OF LAND VEHICLES OR OF AIRCRAFT; AND PARTS AND FITTINGS