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电话: 010-82672581 010-80719277
传真:+86-10-80719151
E-mail:zgliu@gt-optics.com
gzfang@gt-optics.com
地址:北京市昌平区沙河镇京昌高科技信息产
业园一号厂房二层
网址:www.gt-optics.com
Tel:+86-10-82672581 80719277
Fax:+86-10-80719151
E-mail:zgliu@gt-optics.com gzfang@gt-optics.com
Address:No.1 Building,Jingchang industry park for information technology,Shahe Town,Changping District,Beijing,102206 P.R.C.