Ubushinwa bugenzure ibyiza bya valve kubara: irinde gutembera neza, gufunga neza nibindi
Ubushinwa bugenzura ibyiza bya inventure: kubuza gutembera neza, gufunga neza nibindi mubushinwa cheque valve nibikoresho bisanzwe bikoreshwa mugucunga amazi, bifite ibyiza bitandukanye, harimo gukumira imigendekere yinyuma, gufunga neza nibindi. Iyi ngingo w ...
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