29 / | HD | METAL WORKING |
592 | DF | METHOD OF MECHANICAL MANUFACTURE {54} |
897 | .~ Structural member making {4} | |
897.1 | DF | .~.~> Restoring existing member, e.g., reinforcing, repairing |
897.15 | DF | .~.~> Grille making |
897.2 | DF | .~.~> Vehicular structural member making |
897.3 | DF | .~.~> Static structure, e.g., a building component {5} |