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Mtengo wa polyol /pu thovu mankhwala polyol
Polyether polyol imagwiritsidwa ntchito popaka
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Makina Odzaza a PU a Polyurethane Injection Auto Thovu
Sungani malo osungira, sungani zinthu zosungiramo ma CD okhala ndi magaloni 55 mu Voliyumu ya 70 cubic metres ya malo, chifukwa thovu lomwe limanyamula mwachangu limafika nthawi 200 kuposa kuchuluka kwa madzi.
Kodi muli ndi mafunso aliwonse?
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