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The mpainiya modular woyera chipinda kupanga ku China -DERSION
Mbiri Dersion idakhazikitsidwa koyamba mu 2005, ndipo ndi mpainiya wopanga ndi kupanga zipinda zoyera kuyambira 2013, tili ndi mbiri yazaka 18 zopanga zipinda zoyera komanso zida zoyera, tapeza ma patent opitilira 40 pazaka izi, dziko...Werengani zambiri
