| 700 / | HD | DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS |
| 90 | DD | SPECIFIC APPLICATION, APPARATUS OR PROCESS {16} |
| 95 | DD | .~ Product assembly or manufacturing {7} |
| 117 | DD | .~.~ Particular manufactured product or operation {11} |
| 145 | DD | .~.~.~ Metal {2} |
| 148 | DD | .~.~.~.~ Rolling {2} |
| 150 | DD | .~.~.~.~.~ Control or detection of a particular condition {5} |
| 152 | | .~.~.~.~.~.~ Tension control (e.g., interstrand) |