7 Pneumatic tube conveyors; Pneumatic valve actuators; Pneumatic controls for machines, motors and engines; Tube conveyors, pneumatic; Valves being parts of machines operated pneumatically and by air; Air filters for pneumatic controls being part of machines; Compressed air machine components, namely, cylinders, valves and air grips; Parts for pneumatic blow guns, namely, inflator tips, inflator valves, valve adapters, nozzles, nipples, couplers, connectors and pivots; Pneumatic air preparation equipment, namely, airline filters, lubricators, and regulators, all being parts of machines