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      PATENTS AND AWARDS     

 
   

Awards

National Technology PrizeMunicipal Technology PrizeSpecial Contribution AwardStar Enterprise AwardISO9001 CertificateHi-Tech EnterpriseGold Prize of Invention (A)Gold Prize of Invention (B)

 

Patents

China ((ZL 02 1 06915.8)China (86 102269.6)China (85 1 01505.0)USA (4,678,546)USA (4,810,584)Europe (0196093)Japan (1935831)
 


Mr. Liu Yuzhong is awarded the "International Gold Prize of Invention" for High Hardness Film-Coated Tantalum Spinneret in the "Beijing International Invention Exhibition" in October 1988.
 

  

 

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Gold Prize of Invention (International)