7 3D printers; Belts for conveyors; Belts for engines; Centrifugal blowers; Gears, other than for land vehicles; Machine parts, namely, bearings and bushings; Paper shredding machines; Parts for pneumatic blow guns, namely, inflator tips, inflator valves, valve adapters, nozzles, nipples, couplers, connectors and pivots; Screwdrivers, electric; Springs being parts of machines