after more than 4 months of careful manufacturing and debugging, zhonglan changhua (former changsha yuan) independently developed, with complete intellectual property rights of the potassium salt industry core technical equipment - the first domestic primary solid carnallite cold decomposition crystallizer,after the success of the crystallizer industry test, it will provide strong technical support for the lao related project carried out by the company, help zhonglan changhua more actively integrate into the construction of "one belt" and further enhance the technical strength.