Otu R&D nke ụlọ ọrụ ahụ nwere ihe karịrị 50% nke ahụmịhe R&D karịrị afọ 10, ma nwee R&D nọọrọ onwe ya, imewe na ikike mmepụta.N'ihe karịrị asambodo patent 50, nwere ike nyocha na ike mmepe na ngwa anya na ọkụ eletrik.
R & D
