Provide free velvet sample detection services for members, including: velvet content, fluffy degree, cleanliness, dust content, component analysis, species identification and other data.
After successful registration, if you need to upgrade to VIP membership, please contact QQ / Wechat. ：1831045446
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Address：Down town, Tangwei street, Wuchuan, Guangdong
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Jointly：Down industry association of Guigang City.
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