Application of coatings using physical vapor deposition techniques; heat treatment of metals; ion nitriding; metal coating treatment; surface treatment of metals; metal treating; annealing, metal tempering; electroplating; processing of mold; ceramic processing; processing of plastics; processing of artificial limbs or artificial teeth, including processing of medical materials; providing information relating to the metal treating; rental of metal treating machines and tools; providing inform...

In-wall vacuum cleaner with hose and nozzle attachments