| Subject | English | German |
| industr., construct., chem. | back tweel | rückwärtiger Absperrschieber |
| industr., construct., chem. | control tweel | Regulierstein |
| industr., construct., chem. | control tweel | Regelschieber |
| industr., construct., chem. | front tweel | vorderer Regelschieber |
| industr., construct., met. | tweel block | Drosselklappe |
| industr., construct., met. | tweel block | Regulierschieber |
| industr., construct., met. | tweel block | Verschlussstein |
| industr., construct., met. | tweel block | Regulierstein |
| industr., construct., met. | tweel block | Kuchen |
| industr., construct., met. | tweel block | Blendmauer |
| industr., construct., met. | tweel block | Vorsatzkuchen |
| industr., construct., met. | tweel block | Schieber |
| industr., construct., met. | tweel block | Vorstellwand |
