Air powered tools, namely, drills, screwdrivers, rivet hammers, saws; Boring machines for metalworking; Chisels for machines; Chucks for power drills; Compressed air machines; Electric screwdrivers; Fuel filters; Gas compressors; Hydraulic pumps; Hydraulic valve actuators; Machine coupling and belting except for land vehicles; Machine parts, namely, bearings; Milling cutters; Oil separators; Parts of oilfield wellhead machines, namely, gate valves, ball valves, check valves, plug valves, glob...