Qingdao Blue Diamond Industry CO.,LTD 

Address:No.1389 Zhujiang Road Qingdao Economic Development Zone Shandong China.Postal Code:266555

Tel:86-532 86945929
Fax:86-532 86109381

Mail:info@bluediamondindustry.com

Yantai Blue Diamond Industrial Technology CO.,LTD

Address:No.20 Taishan Road Yantai Economic Development Zone Shandong China.Postal Code:264006

TEL:86 0535 3282177

FAX:86 0535 3282177

Mail:Mike@bluediamondindustry.com 

Zibo Zhongdu Precision Industry CO.,LTD 

Address: No.3 Houzhuang Xianchuang District Zibo Shandong

Tel:86-532 86945929
Fax:86-532 86109381

Mail:steven@bluediamondindustry.com