Beijing Zhengshi Environmental Engineering Co., Ltd

Address: Yuan Shengshu #28 Daxing District, Beijing

Phone: 86-0312-3104581

Mobile phone: 86-18630263110

Skype: zhengshibryan   WhatsApp: +86-18630263110

E-mail: zhengshibryan@hotmail.com

URL: http://www.zhengshihuanbao.com