Ferro silicon ndi chitsulo chachitsulo ndi awiri omwe nthawi zambiri amagwiritsidwa ntchito mawu ogulitsa pazitsulo. Zinthu zonsezi zimapangidwa ndi silicon, yomwe ndi chinthu chopangidwa ndi chizindikirocho si ndipo ...
Chonde lowetsani imelo yanu ndipo tidzayankha imelo yanu.