BEIJING GUOHUA TECHNOLOGY GROUP LTD.
Address: No.9 Longyue St.,Mapo,Shunyi District,Beijing,China 101300
Email:     ghkj@ghkj.com
Tel:                十86-010-69402082
Fax :         十86-010-60498424
Tangshan Guohua Technology Corporation
Address: No.8 North-Ring Rd. West, High-Tech Industrial Park, Tangshan, Hebei, China 063020
Email:     ghkj@ghkj.cn
Tel:                十86-315-5913666
Fax :         十86-315-5913411