• Ọmarịcha elu, na-adịgide adịgide dị ka ọhụrụ: A na-eji ọtụtụ akwa na-egbuke egbuke elu ahụ, nke na-adịghị ada ada ma welie ọkwa nke ngwá ụlọ.
• ahọpụtara nke ọma, na-adịgide adịgide: Zinc alloy material nwere ike siri ike na nguzogide corrosion, na-adịghị mfe nrụrụ na nchara;
• Njide dị mma, ịkpụzi otu ibe: Emere ya n'otu ibe, ọ na-adị oke oke, otu aka na-ejide, na-enwe ahụ iru ala;
• Standard ịghasa oghere,tightly aka: Kwesịrị ekwesị maka 99% nke ịghasa, na eri doro anya, na aru bụ uko, na ọ dịghị mfe kwa atọpụ ruo ogologo oge.