Zhengzhou Greatwall Scientific Industrial and Trade Co., Ltd.
has grown to be a "technological innovative" enterprise integrated with researching, developing, manufacturing and modern management. .
Raw cannabis was obtained by supercritical fluid CO2(SFC) extraction of cannabis plant material. The raw extract contained a variety of fats and waxes. These inert materials were removed by winterization; the raw extract being dissolved in multiple volumes of ethanol before filtration.
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