A na-eji eriri mgbapụta ma ọ bụ ọla kọọ na-eme ka ọ dị mma. A ga-ejikwa eriri afọ, nke ziri ezi na ogwe, kọmpụta, na-eme ka ọ bụrụ okpomoku -20m / t <300kW, m <10, m <10, m <10, m <10, m <10, m na -achọpụta ihe dị ala.
Nwere ike ikwu:
Cr: SN121; SN122; SN123; SN232; SN232; SN232; SN232; SN232; SN321; SN321;
Hnbr ogige.