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Business license(Beijing)
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CE certificate—steel structure building series
CE certificate—color steel products series
TUV certificate
GB/T 19001-2008 and GB/T 50430-2 007
prefab houses qualification Grade One
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Address: No.2 LiErSi Industrial Park, Zhangjiawan Town, Tongzhou District, Beijing, China
Tel:+86-10-61509657    +86-10-61509652   E-mail:duo@wjlcg.com
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