| 65 / | HD | GLASS MANUFACTURING |
| 376 | DF | PROCESSES OF MANUFACTURING FIBERS, FILAMENTS, OR PREFORMS {18} |
| 443 | DF | .~ With coating (e.g., lubricant, sizing, etc.) {5} |
| 445 | DF | .~.~ Free metal or alloy containing {1} |
| 446 | ![]() | .~.~.~ Vapor deposition of free metal or free metal containing material |