BIG DIPPER TECHNOCHEM INSTITUTE Call£º(86)10-8264.0226; 8264.0225; Fax: (86)10-8264.0221; P.o.Box: 603 BDTI Beijing, China 100190 http://www.fullsense.com/ Email: suncns@yahoo.com sales@bigdipper-technochem.com http://www.fullsense.com/Products/Moisture/