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New house decoration air purification class a unit qualification - verifiable

Update Date: May 30, 2019 13:23 Views: 198
[necessary certificates for air purification of some indoor decoration]
 



 






 
[necessary certificates for some air purification engineers]



[required work certificate for air purification construction personnel]





[formal contract commitment]



[part of the scheme content]

[some construction equipment]

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Jiemei space (Beijing) Environmental Technology Co., Ltd
O2o service leading brand of air treatment

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400-826-6606

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Wangjing SOHO, Chaoyang District, Beijing (near Wangjing East Railway Station)

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