Ningbo Donglian Mechanical Seal Co.,Ltd.

Established in 1992, 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 silicone carbide (ssic), reaction bonded silicone carbide(sic),tungsten carbide, graphite(cabon), boron carbide and mechanical seals which 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 first drafting unit of the industry standard :Ceramic mechanical seal rings technology standards.