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} |
538 | DF | .~ With casting or solidifying from melt {6} |
555 | .~.~ Nickel(Ni) or nickel base alloy {1} | |
556 | DF | .~.~.~> With working |