37 Rental and sale of construction and building equipment; rental and sale of construction equipment, namely, hammer drills, jack hammers, power jacks, ladders, and drainage pumps; rental and sale of construction machines and apparatus, namely, concrete mixers, mortar mixers, scissor lifts, towable lifts, drywall lifts, post hole machines, chippers, aerators; rental and sale of hand and power tools, namely, saws, drills, tillers, chainsaws, welders, paint sprayers, pressure washers and sand blasters; rental of bulldozers, earth moving equipment and excavators, namely, backhoes, forklifts, loaders, tractors and augers; rental and sale of trench shoring and shielding equipment; rental and sale of electrical plumbing equipment; rental and sale of floor buffers, floor cleaning machines, polishers and sanders, ; rental and sale of building equipment; rental and sale of building scaffolds, working and building platforms; rental and sale of commercial cleaning equipment, namely, carpet cleaners, buffers, tile strippers, vacuums; rental and sale of tractors