20 16-08- 17 to 20 16-08- 19? 20 16 China Guangzhou International Water Supply and Drainage Technology and Equipment Exhibition
20 16-08- 17 to 20 16-08- 19? 20 16 China Guangzhou International Air Purification Products and Technology Exhibition
20 16-08- 17 to 20 16-08- 19? 20 16 China Guangzhou international city appearance and environmental equipment Expo
20 16-08- 17 to 20 16-08- 19? 20 16 China Guangzhou international water purification technology products and technology exhibition.
20 16-08- 17 to 20 16-08- 19? 20 16 Guangzhou international environmental protection industry Expo
Information display: Guangzhou 8. 15-8.3 1 * * 23 exhibition information. . I won't post them one by one, so I'll go and see for myself.