Molao-motheo oa ho sebetsa le mokhoa oa ho laola oa valve othomathike
Valve e iketsang ke mofuta oa valve o ka fetolang phallo, khatello, mocheso le likarolo tse ling ho latela phetoho ea li-parameter tsa sistimi, e sebelisoang haholo ho petroleum, indasteri ea lik'hemik'hale, metallurgy, kaho le liindasteri tse ling ...
lintlha tsa pono