Cov kab ntau lawm muaj ntau yam kev siv, tuaj yeem tsim cov hmoov nplej thiab granular chiv, thiab ua lub luag haujlwm hauv ib puag ncig hauv kev rov siv cov khoom pov tseg.Kev ua tiav cov kab ntau lawm feem ntau suav nrog: kev pub mis, khoom siv fermentation, crusher, tov khoom, tshuaj ntsuam mac ...
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