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malo okonza a PCD adawona masamba.

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Zinthu zamitundu yothamanga kwambiri imawona tsamba loyenera kudula chitsulo chosapanga dzimbiri.

Kusiyana pakati pa ozizira ndi osavomerezeka.

.

Mavuto ofala pakugwiritsa ntchito carbide.

PCD onani tsamba ndi chida chabwino komanso cholimba..

Ubwino ndi ntchito youma odulidwa macheka.

Kodi matabwa a aluminiyamu angagwiritsidwe ntchito kudula nkhuni kuwonjezera pa kudula aluminiyamu?.