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Section XVIII — Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof

National subdivision

90328

Other instruments and apparatus:

Common commodities
Automatic process controllersIndustrial humidity regulatorFluid level controller deviceAdjustable voltage regulator unitElectronic speed regulator systemAutomatic water level control instrumentProcess flow controller apparatusIndustrial humidistatMechanical flow rate controllerIndustrial fluid pressure regulator

Codes