| 425 / | HD | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
| 500 | DF | PREFORM ASSEMBLY MEANS AND MEANS FOR BONDING OF PLURAL PREFORMS INVOLVING PREFORM RESHAPING OR VULCANIZING {8} |
| 506 | DF | .~ With treatment means other than assembling, bonding, shaping or reshaping means {2} |
| 507 | DF | .~.~ Means to modify temperature of work or product {1} |
| 508 | | .~.~.~ Heating {1} |
| 509 | DF | .~.~.~.~> And cooling |