Matrass C-Graphene Industry Group Limited

Address: Room EFG, 4th Floor Hao Run Building,No.50 Deng Shi Kou Street,Dong Cheng District,Beijing,China 
Postcode:100006
Tel：(+86)-10-65256918
Fax：(+86)-10-65256795
Email: info@matrass-cg.com