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Differences Between GB 2626-2019 and EN 149: 2001 + A1:2009 Face Mask
Compared with GB 2626-2019, and EN 149: 2001 + A1:2009 Face masks contain many technical differences.
Detailed information can be found in this post.
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Compared with GB 2626-2019, and EN 149: 2001 + A1:2009 Face masks contain many technical differences.
Detailed information can be found in this post.