Shanghai Tong-Joe-Laing Biomaterial Co displays their degradable biomaterial to the expo, which can be used for textiles, rubbish bags and agriculture. [Photo provided to chinadaily.com.cn]

A visitor takes photos of handicrafts at the expo in Yantai, Shandong province on Oct 18. [Photo provided to chinadaily.com.cn]

The booth of the Beijing Institute of Fashion Technology displays students' works during the expo in Yantai, Shandong province on Oct 18. [Photo provided to chinadaily.com.cn]