Address：Dujiba industrial park, rongchang district, chongqing city
Tel：023-46797190 023-46797184
Fax：023-46797190
URL：changyuancorp@changyuancorp.com
Address：Building 4, 64 rongsheng road, changzhou street, rongchang district, chongqing city
Tel：023-46796876 023-46796772
Fax：023-46796876
URL：qiaobo@changyuancorp.com
Address：Gansu province located on No. 111 Yinshan Road
Tel：0943-8612528
Fax：0943-8615011
URL：http://www.changyuangroup.com/
