Metal casting; treatment of material, namely, treatment of metals and metal alloys for 3d printing and 3d printing services, treatment of polymers, treatment of materials by rapid prototyping, and providing information relating to the treatment of materials; metal treating; metal stamping; metal fabrication and finishing services for others; applying decorative and protective coatings to metal by means of galvanization; metal treating and casting, hardening of metal and metal products; metal ...