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专利申请号:CN200620022361.7公开号:CN200968875申请日:2006.09.12公开日:2007.10.31申请人:云南铝业股份有限公司
Patent application number: CN200620022361.7 Publication number: CN200968875 Application date: 2006.09.12 Date of publication: 2007.10.31 Applicant: Yunnan Aluminum Co., Ltd.