51 Shuang-xian-nan Road
Jiangdu City, Jiangsu Province, China
Tel:+86-514-86827848，85188869
Fax: +86-514-86827880

USA&Canada:

Doubletree Systems Inc.
4030 Moorpark Avenue, Suite 222
San Jose, CA 95117, USA
Tel:+1-408-850-1416
Fax: +1-408-519-7091

The Factory Location:

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