===under info was translated buy computer===
Gross weight (including packaging) : 6.8, product size: 15.5 * 10 cm, material: double S face cloth 25 grams, 50 grams of non-woven fabric, hot air cotton cloth of melt-blown two layers of 50 grams, backing double S non-woven 25 grams, factory direct sales, sales, international inspection report, CE certification FFP2 report, FDA certification, CNAS report and other documents to be complete, wholesale please book in advance, quantity is with preferential treatment. 1,5 layers of protection, 2, independent sealed packaging, 3, the external bridge can be adjusted, 4, built-in bridge,
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