501 / | HD | COMPOSITIONS: CERAMIC |
1 | DF | CERAMIC COMPOSITIONS {15} |
141 | DF | .~ Clay containing (e.g., porcelain, earthenware, etc.) {3} |
145 | DF | .~.~ Clay pretreatment {3} |
146 | DF | .~.~.~ Chemical pretreatment {2} |
148 | .~.~.~.~ Using organic substance as treating agent |