Butterfly check valve e bua ka valve e bulang le ho koala disc ka bo eona ho latela phallo ea sehare ka boeona, 'me e sebelisetsoa ho thibela sehare ho khutlela morao.E boetse e bitsoa valve ea ho hlahloba, valve ea tsela e le 'ngoe, valve e phallang ka morao, le valve ea khatello ea morao.The cheque valve ke k...
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