90318000 under HS Code MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER; PROFILE PROJECTORS OTHER INSTRUMENTS, APPLIANCES AND MACHINES, 90328990 under HS Code AUTOMATIC REGULATING OR CONTROLLING INSTRUMENTS AND APPARATUS - OTHER INSTRUMENTS AND APPARATUS: - OTHER: OTHER, and 90303390 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, FOR MEASURING OR CHECKING VOLTAGE, CURRENT, RESISTANCE OR POWER: -- OTHER, WITHOUT A RECORDING DEVICE:OTHER were the top imported HS Codes by I P S ENGINEERING in 2021.