3D printers; Autogenous soldering machines; Diesel engines for machines; Electric arc welding apparatus; Electric plasma cutters; Electric scissor sharpeners; Electric sweepers; Electric and pneumatic hoists; Galvanizing machines; Gas cutting guns; Gas welding guns; Generators of electricity; Industrial engines; Laser welding machines; Metal working machines, namely, saws and cutters; Oxy-acetylene welding and cutting machines; Paint supply cartridges sold empty for use with industrial painti...