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Analysis of common quality problems in airlaid paper products
Aug 08,2020
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Analysis of common quality pro...

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Does KN95 mask breathing valve affect the protective effect?
Jul 30,2020
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Does KN95 mask breathing valve...

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Can pregnant women wear anti-smog masks when going out? Can pregnant mothers wear masks for a long time?
Jul 24,2020
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Can pregnant women wear anti-s...

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How often does the medical mask change? Teach you how to save masks in 1 minute!
Jul 17,2020
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How often does the medical mas...

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What is the breathability of masks?
Jul 10,2020
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What is the breathability of m...

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Similarities and differences between N95 medical protective mask and N95 mask
Jul 03,2020
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Similarities and differences b...

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What is the difference between activated carbon masks and medical masks?
Jun 28,2020
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What is the difference between...

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Standards for different use of masks
Jun 19,2020
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Standards for different use of...

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