It is a bismuth-based eutectic fusible alloy made of four low-melting metals such as bismuth, tin, lead, and indium, without cadmium. It has a low melting point, can be melted in hot water, is easy to recycle and can be reused many times.
It is a kind of velocity flow meter with double spiral blades, suitable for the measurement of liquid such as high sand and high water content crude oil, oily sewage, diesel, gasoline, light oil, food oil, chemical fluids, liquefied petroleum gas, etc.