Igwe na-egweri nke ọma

Ejiri ya na igwe ihe nkenke n'elu akwụkwọ ntuziaka 5, 2 akpaka elu igwe na igwe cylindrical 2.Nkwenye egweri nwere ike iru 0.002mm, na njem nwere ike iru 1000X600mm.