Beijing KÖSTER International Chemical Industry Co. Ltd.
Dr. Dr. Jianping Yang
Rui Cheng Guo Ji 2215 No.71 Chaoyang Rd.
100123 Chaoyang District, Beijing
CHINA
Phone: +86 10 52059398
Fax: +86 10 52059397
E-mail: jianpingyangx@163.com
Internet: www.koester.cn