Now people’s requirement for water quality is increasing with the living standard improving, most of them need water purifier to drink healthiness water. So with popularization of water purifier, brand water purifier enterprises from the world is, recently, flooding into South China market which contain huge market with 50 billion Yuan five years later.
Due to water purification industry keeping 50% developing speed, 2012 Guangzhou International Drinking Water & Purification Fair (DWP 2012) will be held at China Import and Export Fair Pazhou Complex from August 21-23, 2012 to showcase water purification equipment and technology with the wide range.
Exhibition Scope
Drinking water equipment
Water purification equipment
Hot water system
Water purification consumables and accessories
Sterilization equipment

Rachel;

It appears what you are describing is much like the followign trade shows here in the U.S. :

AWWA ACE  (American Water Works Assoc.)  AWWA
WEFTEC  (Water Environment Federation)  WEF
Water Expo  (National Rural Water Assoc.)  NRWA

Each of these shows allows a multitude of vendors to show off their products & teach you about them too.

Dallas