beijing Jianke Huifeng Science and Technology

Who we are

JIANKE HUIFENG SCIENCE AND TECHNOLOGY CO., LTD. (registered trademarks: and “建科汇峰”), which is under the jurisdiction of command of Chinese Academy of Building Materials Science, is a science and technology production enterprise specializes in development, production and selling of the ultra high pressure sealing elements for steel pipe hydro-static pressure test.

Since 1992, the company has applied itself to development and production of the sealing elements for steel pipe hydraulic testers all the time, and it owns strong professional R&D teams and excellent after-sale service personnel. It has established cooperative relations with more than 20 well-known hydraulic press design units in China, and designed and produced sealing products of various specifications to meet customer requirements. Our products are well-selling in major domestic steel tube manufacturers, while exported to nearly 20 countries and regions abroad. The company's product specifications have become the default standard of the domestic steel tube pressure test industry.

At the beginning of 2013, the company has began to enter the main drive seal and hinged seal industry of large-scale shield machine. The first main drive seal of shield machine ,which is independently developed and manufactured by our company, has been tested by customers and achieved good results. The life time and performance have reached the advanced level of foreign countries. 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. At present, the shield sealing produced by our company has been applied to nearly 100 shield machine equipment. Through extensive use and verification by construction units, favourable comment and economic benefits have been achieved. Domestic shield sealing is gradually replacing foreign products.

The company's main products are:

Various high pressure or ultra-high pressure sealing elements used in steel pipe hydro-static pressure test

PTFE sealing ring and PTFE tubing materials;

Shield machine main drive seal, hinged seal and other rotary seal.

The company has a professional research and development team of technology and materials. It has won 16 national patents and the award of "Shield Machine Main Drive Seal" new product awarded by six ministries , such as Beijing Science and Technology Commission, Development and Reform Commission. China Machinery Engineering Association Driving Machinery Branch has given "High-quality Domestic Accessories Products". It also won the reputation of “class A supplier” of TIANJIN PIPE (GROUP) CORPORATION.

In 2002, the products of the company passed ISO 9001 :2000 national quality management system certification (registration number: 04318Q31404R5S)

Our quality policy is : to meet customer requirements and achieve win-win with high quality products, highly effective service and continuously improved product quality.

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

Our values

meet customer requirements and achieve win-win with high quality products, highly effective service and continuously improved product quality

Our presence around the world