85444223 under HS Code Others, 90304000 under HS Code OSCILLOSCOPES, SPECTRUM ANALYSERS AND OTHER INSTRUMENTS AND APPARATUS FOR MEASURING OR CHECKING ELECTRICAL QUANTITIES, EXCLUDING METERS OF HEADING 9028; INSTRUMENTS AND APPARATUS FOR MEASURING OR DETECTING ALPHA, BETA, GAMMA, X-RAY, COSMIC OR OTHER IONISING RADIATIONS OTHER INSTRUMENTS AND APPARATUS, SPECIALLY DESIGNED FOR TELECOMMUNICATIONS (FOR EXAMPLE, CROSS-TALK METERS, GAIN MEASURING INSTRUMENTS, DISTORTION FACTOR METERS, PSOPHOMETERS), and 85177099 under HS Code Others were the top imported HS Codes by N&A Vietnam Services Engineering and Technology Company Limited in 2021.