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The larger the down feathers are, the more difficult it is to purify because the filaments are long and the feathers are tightly entangled with each other; the general processing factory can only extract the down to 86~88. And to refine to a higher down content (90~95 down), you need a very professional down manufacturer to do it.
White duck down:
The raw materials are mainly from Anhui Province, Guangdong Province, Shandong Province and other places. The average growth period is more than 40 days. Although it is much smaller than goose down, it is more uniform and fluffy, which is normal. Puffiness up to 600in3 / 30g
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Maanshan Guangqian Feather Products Co., Ltd.