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I-valve yebhola ye-PVC iyithuluzi elisebenza ngezindlela eziningi eliklanyelwe ukulawula ukugeleza koketshezi ngokusebenzisa ibhola elizungezayo elinebhore. Inikeza ukulawula okunembile, okuvumela abasebenzisi ukuthi baqale, bamise, noma balungise ukugeleza kalula. Le valve idlala indima ebalulekile ezinhlelweni zamapayipi kanye noketshezi, iqinisekisa ukusebenza kahle kanye nokuvimbela ...Funda kabanzi»