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2009年10月16—17日,北京市建设工程物资协会建筑机械分会2009年年会召开,会上公布了首批取得“北京市建筑起重机械租赁企业资信等级证书”的
On October 16-17, 2009, Beijing Construction Materials Association Construction Machinery Branch Annual Meeting 2009 was held, at which the first batch of “Certificate of Credit Rating of Beijing Construction Crane Leasing Enterprise” was announced.