Ningbo Donglian Mechanical Seal Co.,Ltd.
      Established in 1992, previously called Ningbo Dongya Mechanical Seal Manufacturer, a National High-tech enterprise with Provincial Research and Development Center, ranked on the top of the same line in the research,development and production scale. A coverage of 32000 square meters and a building area of 28000 square meters, an existing Staff of over 300.
      Main products: mechanical seal faces or rings, armours and bullet-proof plates in high purity ceramic, pressureless sintered silicon        carbide (ssic), reaction bonded silicon carbide(sic),tungsten carbide, graphite(cabon),and boron carbide. Shafts,sleeves/tubes/bushings/bushes with high precision in silicon carbide and aluminium oxide ceramic are available from us. Our mechanical seals can replace the famous brands. The ceramic plates which we researched and developed were successfully assembled in the satellite named Science and Experiment 10 and space experiment room called Tiangong 2 in 2015. The following is what we have obtained:

    The first drafting unit of the industry standard :Ceramic mechanical seal rings technology standards.
    The participant of the National industry: Auto motor cooling pump mechanical seal standard
    The developer of Zhejiang Manufacturing Group standard: high purity ceramic mechanical seal rings with high performance and pressureless sic with high performance
Certificates: ISO9001/ISO14001/OHSAS 18001,Intellectual Property Management System, and National Level II Safety Quality Standardization.
     Invention Patents: 11.                  New Utility Patents: 65
     National Key Products: 3             The third prize of Zhejiang Technology Inventions: 2
     The first prize of Yinzhou Science and Technology Advance: 2

     The other prizes are listed as follows:
     Model Enterprise of Zhejiang Patents in 2012,
     Experiment Enterprise of Ningbo Innovation in 2013
     Model Enterprise of Ningbo Credit Management
     Model Enterprise of Yinzhou Clean Production
     Certificate of Zhejiang Manufacturing Certification.
      Advanced management: ERP systems and remote operation
      Director of the board: Mr. Li Ping anticipates more and more clients will come to establish good business relations on the mutual benefits and interests.