Ngwa ọhụrụ nke ihe mmechi ọkụ akpaaka na adhesives: Mmetụta mmekọrịta na-eme ka nchekwa ọkụ na ịrụ ọrụ nkekọ.
Ngwa ọhụrụ nke ngwa mmechi ọkụ akpaaka na nrapado: Mmetụta mmekọrịta nke imelite nchekwa ọkụ na ịrụ ọrụ nkekọ, akụkọ a na-enyocha nke ọma ngwa nke ngwa nkwụsị ọkụ akpaka na adhesives. Ọ na-akọwapụta mkpa na ụkpụrụ ọrụ nke ihe nkwụsị ọkụ na-akpaghị aka na usoro nchekwa ọkụ, na nyochaa ...