Q1:Yintoni ivalve yebhabhathane?A: Ivalve yebhabhathane ivalve esetyenziselwa ukulungelelanisa ukuhamba kwamanzi kunye noxinzelelo, iimpawu zayo eziphambili zincinci, ubunzima obulula, isakhiwo esilula, ukusebenza kakuhle kokutywinwa.Iivalvu zeButterfly zoMbane zisetyenziswa kakhulu kunyango lwamanzi, kwipetrochemical, metallurgy, electric pow...
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