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| National quality inspection qualified product stability |  | 
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| Quality management system certification |  | 
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| Occupation health and safety management system certification |  | 
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| Environmental management system certification |  | 
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| A product quality authentication certificate |  | 
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| A product quality authentication certificate |  | 
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| A product quality authentication certificate |  | 
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| International symbol product certificate |  | 
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| Hebei province famous brand product certificate |  |