FZ

Fujun ZHAN

Overall (2018): #149,127 of 503,207Top 30%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10145502 Large-aperture spiral welded steel pipe with metal linings and manufacturing method thereof — 2018-12-04
10030792 Underground steel-concrete structure pipeline with spiral composite reinforcement ring on inner wall and manufacturing method thereof — 2018-07-24