hot melt units for use with melting adhesives, namely, devices for any of feeding, storing, heating and pumping hot melt adhesive, valve drivers, namely, electric amplifier circuits to fire electric hot melt dispensing valves sold as a unit therewith; electric glue guns; hot melt glue guns; parts for hot melt glue guns, namely, valve modules and hot melt hoses; machine applicators, namely, nozzles and applicator tips and fittings; pressurized glue applying equipment, namely, machines for appl...