OkubonakalayoUkukhiya Kwevalvu YebholaI-VSBL04
a) Kwenziwe nge-PC esobala.
b) Vimbela ukuthi izibambo zevalvu zingaphendulwa uma zikhiyiwe.
c) Ukusebenzisa ama-semicircle amabili ukuze kufakwe ama-valve okukhiya amabili.
d) Faka izinkinobho ezifika ku-60mm ubude.
| Inombolo Yengxenye | Incazelo |
| I-SBL04 | Ububanzi bembobo: 7mm |
