7 drilling, cutting, and mining machines; machines for cutting, loading, hauling, handling, and transportation of minerals, coal, and other materials; loaders; dredging machines; bulldozers; cranes; excavators; draglines and dragline buckets; backhoes; mining shovels; electric loading shovels; conveyors; crushing and conveying systems; mine roof support machines; machinery for air pollution control; chains; motors for heavy equipment and mining machines; drives for heavy equipment and mining machines; drives for motors used for heavy equipment and mining machines; drive systems consisting of motors and controls for use in heavy equipment and mining machines; mining and drilling tools; conveyor decks; mining bits; oil filters; chains for conveyors; accessories for power-operated drums; sleeves for bits; bit blocks; parts, components, attachments, accessories, and fittings for all the aforesaid goods