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I-valve yokuphepha yensimbi engagqwali yethangi nepompo
Ama-valve okusiza ukucindezela okulayishwe entwasahlobo alungisekayo abuye abizwe ngokuthi i-sanitary safety valve aklanyelwe njengokukhulula ingcindezi nama-by-pass valves ukuze avikele imigqa, amaphampu nezinye izinto zokusebenza emonakalweni obangelwa ukucindezela kwezitshalo.
