Nke a na-emebu akpa nduku ibe nkwakọ ngwaahịa bụ ụdị oge gboo maka nri akpa akpa akpa akpaka, nwere ike mezue ọrụ ndị dị ka akpa akpa, mbipụta ụbọchị, oghere ọnụ akpa, ndochi, compaction, mkpuchi ọkụ, ịkpụzi na mmepụta nke ngwaahịa emechara, wdg Ọ dabara maka ọtụtụ ihe, akpa nkwakọ ngwaahịa nwere oke mgbanwe dị iche iche, ọrụ ya dị omimi, dị mfe ma dị mfe, ọsọ ya dị mfe ịhazi, nkọwapụta nke akpa akpa nwere ike ịgbanwe ngwa ngwa, yana arụ ọrụ ya. nke nchọpụta akpaka na nleba anya nchekwa, ọ nwere mmetụta pụtara ìhè maka ma ibelata mfu nke ihe nkwakọ ngwaahịa yana hụ na akara akara na ọdịdị zuru oke. Igwe igwe anaghị agba nchara, na-ekwe nkwa ịdị ọcha na nchekwa.
Ụdị akpa kwesịrị ekwesị: akpa nke nwere akụkụ anọ, akpa nke atọ, akpa aka, akwụkwọ-plastic akpa, wdg.
Ihe kwesịrị ekwesị: ihe dị ka nkwakọ ngwaahịa nut, nkwakọ ngwaahịa sunflower, nkwakọ mkpụrụ osisi, nkwakọ ngwaahịa bean, nkwakọ ngwaahịa mmiri ara ehi, nkwakọ ngwaahịa ọka, nkwakọ ngwaahịa osikapa na wdg.
Ihe nke akpa nkwakọ ngwaahịa: akpa preformed na akpa mpempe akwụkwọ-plastic wdg mere nke ọtụtụ ihe nkiri mejupụtara.