Izinto eziqhelekileyo zeengxowa ezitywiniweyo ezinamacala amathathu:
PET, CPE, CPP, OPP, PA, AL, KPET, njl.
Iingxowa ezitywiniweyo ezinamacala amathathu zisetyenziswa kakhulu kwiingxowa zokupakisha ukutya okulula, kwiingxowa zokupakisha iimaski zobuso, njl. kubomi bemihla ngemihla. Uhlobo lwengxowa yokuvala enamacala amathathu luvaliwe ngamacala amathathu kwaye elinye icala livulekile, elinokufakwa amanzi aneleyo kwaye livalwe, lilungele iimveliso kunye nabathengisi.
Iimveliso ezifanelekileyo kwiingxowa zotywino ezinamacala amathathu
Iingxowa ezitywiniweyo ezinamacala amathathu zisetyenziswa kakhulu kwiipakethe zokutya, iingxowa zokucoca, iingxowa zerayisi, iingxowa zokuma, iingxowa zemaski yobuso, iingxowa zeti, iingxowa zelekese, iingxowa zepowder, iingxowa zobuhle, iingxowa zokutya okulula, iingxowa zonyango, iingxowa zezinambuzane, njl.
Ingxowa yesitywino enamacala amathathu inokwandiswa kakhulu kwaye ineempawu ezininzi ezinokwenziwa ngokwezifiso, ezifana neeziphu eziphinda zivalwe ngokwezifiso, ukongeza imingxuma yokukrazula evuleka lula kunye nemingxuma yokuxhoma ukuze kuboniswe ishelufu, njl.
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Zonke iimveliso zivavanyelwa uvavanyo oluyimfuneko kunye nelebhu ye-QA yanamhlanje kwaye zifumana isatifikethi selungelo elilodwa lomenzi.