Working Principle: Plunder contacts medium directly. With reciprocation of the plunger,volume of working chamwer is changed cyclically, so as to such in and discharge the medium. Features: ? Adopt patented stuffing with superior sealing performance and lo
117F 47C alloy a bismuth-based eutectic fusible alloy made of five low-melting metals such as bismuth, tin, lead, indium and cadmium. It has a low melting point, can be melted in hot water, is easy to recycle and can be reused many times.