Yang Gong is an engineer of an automatic door manufacturer. Recently he received a project to develop a new type of revolving door. They are experts in the door, but they do encounter problems on the strip brushes nz. Party A's requirement for the strip brushes nz is that the softness of the strip brushes nz does not hinder the normal operation of the door and must maintain the indoor temperature. The conventional strip brushes nz previously used is not suitable.

After receiving the request of Yang Gong, the research and development team of Aoqun held a meeting to gather the opinions to initially formulate the solution: 1. Increase the base size of the rotary door strip brushes nz and increase the number of brush filaments; 2. Use the flexible and resilient nylon material reduces the friction with the ground; 3. The film is sandwiched between the filaments, to enhance the sealing effect. Later, with Yang Gong’S data, a reinforced strip brushes nz was successfully developed.

On the 7th day of the reinforced strip brushes nz sample test, Yang Gong sent AOQUN a feedback: "The test results are very satisfactory, the degree of sealing has exceeded their imagination, and the operation of the revolving door is not affected at all. My customer is very satisfied!"