Our Contact

Whatsapp: +86-186 1206 8213

Tel: +86 -10-67377677

E-mail: sunyuhe@polygonchina.com

URL: www.thesmartgas.com

Address: 1-B501,Jiaoao Center, No.59, Chemical Factory Road, 

　　　　 Chaoyang District, Beijing, China 100124

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