Los ntawm lub Plaub Hlis 23 txog 25, 2021, lub rooj sib tham txhua xyoo ntawm Hunan Botanical Extracts Association thiab 12th Summit Forum ntawm Tuam Tshoj tsob nroj extract tau muaj nyob rau hauv Changsha Mingcheng thoob ntiaj teb tsev so, kws txawj los ntawm Suav Academy ntawm Sciences, Tuam Tshoj Food Additive Association, cog extract ceg ntawm Tuam Tshoj. Kws kho mob...
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