1. Ụlọ nchekwa nchekwa igwe siri ike emebere iji nye nchekwa echekwara na ahaziri maka ngwaọrụ, akụrụngwa na ihe nkeonwe.
2. Ewubere site na nchara dị elu nke nwere mkpuchi ntụ ntụ ojii na-eguzogide corrosion maka ịdịte aka na nchebe na-adịgide adịgide.
3. Na-egosipụta usoro mkpọchi iji kwalite nchekwa na ichekwa ihe echekwara na ịnweta enweghị ikike.
4. Kwesịrị ekwesị maka iji n'ebe ọrụ, ụlọ nkwakọba ihe, ebe a na-adọba ụgbọala, na ntọala ụlọ ọrụ.
5. Na-enye ohere nchekwa zuru oke na shelves na-agbanwe agbanwe iji nabata ihe dị iche iche na akụrụngwa.