Non-metal building material, namely, water pipes and protection pipes made of plastic for the installation of pipe installations for drinking water

Measuring, detecting, control and monitoring instruments in the nature of devices used for heating and electricity, namely, electro- technical, electronic, optoelectronic and acoustic equipment in the nature of acoustic meters, flow meters, instruments for measuring length, water testing instrumentation for monitoring and detecting contamination, water filter controllers, water temperature gauges, water heater controllers, water level indicators, sensors for measuring concentrations of chemic...