DK

Defang Kong

Overall (All Time): #2,767,969 of 4,157,543Top 70%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11208708 Wolfram carbide based hard alloy and its preparation method Hao Zhang, Zhongjian Zhang, Tao Xu, Weibing Zhang, Donghua Zhang 2021-12-28