I. Ngokwamandla 1. Ivalve ezenzekelayo: thembela kumandla ngokwawo ukuze isebenze ivalve.Njengevalve yokukhangela, ivalve yokunciphisa uxinzelelo, ivalve yomgibe, ivalve yokhuseleko, njalo njalo.2. I-valve yokuqhuba: uthembele kubasebenzi, umbane, i-hydraulic, i-pneumatic, kunye nezinye imikhosi yangaphandle ukuze isebenze i-valve.Enjalo...
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