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KN95 respirator with respirator valve adult the disposable breathable dust - proof droplet mantra smog mantra civilian respirator
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In total, there are 4 layers: the inner two layers have no protective cloth, the middle layer is hot air cotton, and the middle layer is melted spray cloth (50g).
Business license, test report, certificate, CE certificate complete, non - medical abandoned masks
Business license, test report, certificate, CE certificate complete, non - medical abandoned masks