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Haijun REN

HC Hangzhou Xzb Tech Co.: 2 patents #2 of 3Top 70%
Overall (2019): #168,896 of 560,194Top 35%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10408093 Welded high-pressure fuel pump roller tappet Na Xu, Hua Dong 2019-09-10
10287930 Lightweight rocker arm frame and curved crown part forming process thereof Na Xu 2019-05-14