Ulusi wautali winawake umadulidwa ndikugwiritsidwa ntchito kuyeza kuchuluka kwa ulusi.
GB/T14335;GB/T14336;GB/T6100.
| Chitsanzo Dzina | YY171A | YY171B | YY171C | YY171D |
| Utali wa chitsanzo(mm) | 10 | 20 | 25 | 50 |
| Mogwira kudula molondola | ±1% | ±1% | ±1% | ±1% |
| kukula(mm) (L×W×H) | 230 × 100 × 90 | 230 × 100 × 90 | 230 × 100 × 90 | 230 × 100 × 90 |
| Kulemera (kg) | 0.85 | 0.85 | 0.85 | 0.85 |