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Silver powder is a key ＂necklace＂ material in the photovoltaic industry chain, accounting for about 10% of the cost of photovoltaic cells. As the most expensive auxiliary material, it belongs to the strategic emerging industries of ＂new energy＂ and ＂new materials＂ encouraged by the state. The company independently designs a variety of mass transfer reaction devices, combined with material ratios and process parameters, to precisely control the direction and speed of grain aggregation and growth, so as to obtain high-performance silver powders with different crystal forms and particle sizes, which are suitable for various solar cell pastes and electronic paste needs.