Ukuhlaziywa kwezinzuzo kanye nokubi kwe-valve uvemvane waseShayina, i-valve yebhola yaseShayina, i-valve yesango laseShayina, i-valve yeglobu yaseShayina, i-valve yokuhlola yaseShayina: Ukuhlolwa okuphelele kokusebenza kwama-valve ahlukahlukene.
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