| 148 / | HD | METAL TREATMENT |
| 95 | DF | PROCESS OF MODIFYING OR MAINTAINING INTERNAL PHYSICAL STRUCTURE (I.E., MICROSTRUCTURE) OR CHEMICAL PROPERTIES OF METAL, PROCESS OF REACTIVE COATING OF METAL AND PROCESS OF CHEMICAL-HEAT REMOVING (E.G., FLAME-CUTTING, ETC.) OR BURNING OF METAL {17} |
| 240 | DF | .~ Processes of coating utilizing a reactive composition which reacts with metal substrate or composition therefore {12} |
| 284 | | .~.~ Coating composition applied forms oxide coating {3} |
| 285 | DF | .~.~.~> Oxide of aluminum, beryllium or magnesium formed |
| 286 | DF | .~.~.~> Oxide of cobalt, chromium or nickel formed |
| 287 | DF | .~.~.~> Oxide of iron formed |