Mr. Huang Zhengguang
Senior Engineer
South China Institute of Environmental Sciences
7 West Street
Yuancun Guangzhou 510655
Guangdong Province, China
Tel:   (86 20) 8552 8748; 8552 5915
Mobile: 86 13 809771424
Fax:   86-20-8552 5427
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URL: http://www.scies.com.cn/