Butterfly check valve e bua ka valve e ipulelang ka bo eona le ho koala sephaphatha sa valve ho latela phallo ea sehare ka boyona, 'me se sebelisetsoa ho thibela sehare ho khutlela morao.E boetse e bitsoa valve e sa khutleng, valve ea tsela e le 'ngoe, valve ea ho khutlela morao, le valve ea khatello ea morao.Sebopeho sa moralo ...
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