Nkhani
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Ma Resins a Hydrocarbon for Adhesives: Njira Yamphamvu Yomangirira
M’dziko lofulumira la masiku ano, kufunikira kwa zomatira zogwira mtima ndi zodalirika n’kofunika kwambiri. Mafakitale kuyambira pakulongedza mpaka kumagalimoto amadalira kwambiri zomatira kuti apereke zomangira zokhalitsa, zolimba. Chofunikira chachikulu chomwe chimagwira ntchito yofunika kwambiri pakupanga kwapamwamba ...Werengani zambiri