Our company has independently developed and produced the main driving seals and articulated seals for full-face tunnel boring machines. It has made outstanding contributions to the localization of the main drive seal of shield machine and filled in the blank of domestic production of shield sealing rings. The products are suitable for different types of shield machines, such as earth pressure, mud, TBM, etc. and can be applied to the construction of different equipment under different geological conditions. The life time and performance have reached the advanced level of foreign countries. At present, the shield sealing produced by our company has been applied to shield machine equipment of host manufacturing unit, construction and maintenance unit. Through extensive use and verification by construction units, favourable comment and economic benefits have been achieved. Domestic shield sealing is gradually replacing foreign products.

Company culture: People-oriented, Service innovation, Science and Technology Forerunner, Credit and Win-win.