Beijing Yangcun Chemical Co., Ltd Company address: Room 1207, Building 96, Majiapu East Road, Fengtai District, Beijing 100068, China Zip code:100068 Telephone:+86-13701008127 Fax:+86-10-67238448 E-mail:ycchem@bjyangcun.com laozhao63@hotmail.com 3261427466@qq.com website:http://www.bjyangcun.com