Ua los ntawm cov khoom ua tau zoo tooj liab, lub rooj vag valve no yog ruaj khov thiab ruaj khov.
Cov ntaub ntawv yooj yim
| Khoom npe | Tooj liab pob rooj vag valve |
| Daim ntawv thov | Nais phoo |
| Nplaim | Neeg kho tshuab polishing nto |
| Tus kauj | Liab-pleev xim foundry Hlau Handwheel |
| Hwjchim | Siv tes |
| Koom haum tshaj xov | Ywg dej |
Cov khoom lag luam zoo
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02
Nws yooj yim dua rau qhov qhib thiab kaw, vim tias qhov kev taw qhia ntawm lub rooj vag yog sib tshuam, txawm hais tias yog lossis tawm.
