Beijing Dongshengewei air conditioning equipment Co., Ltd.  

Tel:+86-010-66180583 

Email: 1192731193@QQ.COM

Address: Beijing Chaoyang District Xibahe syli 28 Intel B602 Residence Internazionale

Tel: +86-010-64477690/91/92

Fax: +86-010-64477689

Address: No. 2, Lane 55, Lane 118, Suide Road, Putuo District, Shanghai,

Tel: +86-021-66083490/91/92