265152 Instruments for measuring or checking the flow, level, pressure or other variables of liquids and gases

26515235 Electronic flow meters (excluding supply meters, hydrometric paddle-wheels) 26515239 Electronic instruments and apparatus for measuring or checking the level of liquids 26515255 Non-electronic flow meters (excluding supply meters, hydrometric paddle-wheels) 26515259 Non-electronic instruments and apparatus for measuring or checking the level of liquids 26515271 Electronic pressure gauges, sensors, indicators and transmitters 26515274 Non-electronic spiral or metal diaphragm type pressure gauges 26515279 Other instruments for measuring or checking pressure: others 26515283 Electronic instruments and apparatus for measuring variables of liquids/gases (including heat meters/ excluding for measuring pressure/flow/level of liquids) 26515289 Non-electronic instruments for measuring or checking variables of liquids or gases (including heat meters/ excluding for measuring or checking pressure/flow/level of liquids)