Measuring, signalling, analyzing, controlling and regulating apparatus and instruments, namely, level meters that measure pressure and humidity of liquids, gases and solids, pressure meters that measure pressure of liquids, gases and solids, pressure sensors, pressure transmitters, humidity meters for measuring humidity of liquids, gases and solids, and conductivity meters; instruments for measuring viscosity, Dk value, aridity, air volumes with bubble distribution, and protein content in liq...

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