156 / | HD | ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE |
349 | DF | SURFACE BONDING MEANS AND/OR ASSEMBLY MEANS THEREFOR {34} |
379.6 | DF | .~ With means applying wave energy or electrical energy directly to work {4} |
379.7 | .~.~ To an electrically conductive lamina or component incorporated into the work |