Igwe na-emepụta ihe nchekwa nchekwa bụ ahịrị mmepụta akpaka zuru oke, nke nwere ike ime akwa akwa na oke ọkpụrụkpụ nke 3mm.
Igwe na-emepụta ihe nchekwa nchekwa bụ ahịrị mmepụta akpaka zuru oke, nke nwere ike ime akwa akwa na oke ọkpụrụkpụ nke 3mm.
Ihe eji eme ihe bụ Cr12 nwere ogo dị elu yana ogologo ndụ ọrụ.