Usoro ngwaahịa nke anyị

Iji hụ na ebumnuche nke ngwaahịa anyị, anyị etolitela,", , nke nwere ihe anọ ndị a:

1. Nnwale gburugburu ebe obibi: gụnyere oke okpomọkụ na iru mmiri, na-ekpo ọkụ na mmetụta oyi, okpomọkụ dị elu na nchekwa dị ala, wdg.

2. Nnwale ESD: Kpọtụrụ na ndị na-abụghị- na-anwale nnwale

3. Nnwale nke usoro: Nnwale siri ike, dobe ule bọọlụ, Nnwale FPC, nnwale, wdg.

4. Nnwale ngwugwu: Nwalee ọdịdị nchebe nke nkwakọ ngwaahịa