Recently, due to the demolition of Tengtou Industrial Park in Fenghua District where the original site is located into an urban residential area, Ningbo Zhongli John Seals Co., Ltd. has successfully moved to a new factory in June 2020. The original f...

In December 2020, the new silicon carbide material for mechanical seals newly developed by our company (an in-situ silicon carbide fiber reinforced liquid phase sintered silicon carbide ceramic and its manufacturing method) was an invention issued by...