qingdao yongsen new building materials co., ltd-qingdao yongsen new building materials co., ltd
qingdao yongsen new building materials co., ltd founded in 2009, with facry located at qingdao city in shandong province, is a productionornted enterprise.
官方网站：www.cnyongsen.com
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qingdao yongsen new building materials co., ltd-qingdao yongsen new building materials co., ltd
qingdaoyongsennewbuildingmaterialsco.,ltdfoundedin2009,withfacrylocatedatqingdaocityinshandongprovince,isaproductionorntedenterprise.
www.cnyongsen.com