Ms.Sun,Xin,  Mr.Hanjiaye

China Coal Information Institute
National Institute of Occupational Safety (CCII & NIOS)

No.35, shaoyaoju, Chaoyang District, Beijing 100029, China
Tel: 0086-10-86457850, Fax: 0086-10-86457806

 E-mail:ceec@coalinfo.net.cn