| 427 / | HD | COATING PROCESSES |
| 331 | DF | WITH POST-TREATMENT OF COATING OR COATING MATERIAL {14} |
| 372.2 | DF | .~ Heating or drying (e.g., polymerizing, vulcanizing, curing, etc.) {8} |
| 375 | DF | .~.~ Fusion or softening of coating {1} |
| 376.1 | DF | .~.~.~ Inorganic coating {2} |
| 376.2 | DF | .~.~.~.~ Metal oxide- or silicon-containing coating (e.g., glazed, vitreous enamel, etc.) {2} |
| 376.4 | DF | .~.~.~.~.~ Metal base {1} |
| 376.5 | | .~.~.~.~.~.~ Ferrous base |