9027100010 Chinese tariffs HS code Gas detectors for continuous operations (used to detect the chemicals with export control or organic compounds (containing phosphorus, sulfur, fluorine or chlorine, with the concentration lower than 0.3mg/m3), or detect the activity of inhibited cholinest
Gas detectors for continuous operations (used to detect the chemicals with export control or organic compounds (containing phosphorus, sulfur, fluorine or chlorine, with the concentration lower than 0.3mg/m3), or detect the activity of inhibited cholinest