Uhlelo lokudosa luyidivayisi edidiyelwe yokudosa, ukuxuba, ukumnika kanye nokulawula okuzenzakalelayo.Isetshenziswa kakhulu emanzini aluhlaza embonini yamandla, amanzi okuphakelayo kubhayela, uhlelo lokudosa lwe-petrochemical, ukuhlanza amanzi angcolile, ukuchelela ngenkasa kwezolimo, njll. I-valve ingasiza ukufeza inhloso yokuthutha abezindaba, ...
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