A woman shows Chinese tea during 2015 China-ASEAN Expo Thailand Exhibition in Bangkok, Thailand, April 2, 2015. China-ASEAN Expo featured Chinese-made products of high quality under different categories. [Photo/Xinhua]

A staff introduces traditional Chinese medicine to visitors during 2015 China-ASEAN Expo Thailand Exhibition in Bangkok, Thailand, April 2, 2015. China-ASEAN Expo featured Chinese-made products of high quality under different categories.[Photo/Xinhua]

Guests attend the ribbon-cutting ceremony of 2015 China-ASEAN Expo Thailand Exhibition in Bangkok, Thailand, April 2, 2015. China-ASEAN Expo featured Chinese-made products of high quality under different categories. [Photo/Xinhua]

A staff introduces Chinese throat lozenges to visitors during 2015 China-ASEAN Expo Thailand Exhibition in Bangkok, Thailand, April 2, 2015.