A simple clamp can be made from a long bolt, washers and nuts-lamb. The jaw faces are made of solid wood.
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The proposed boiler is designed for heating cold water (temperature up to 60° C) in apartments with Central or local water supply. Facilities associated with the operation of the boiler,...
Electronic thermometer
This device can quickly and accurately measure, for example, the temperature of a human body, water, and air. An electronic thermometer is needed by agricultural workers to determine the...