The manufacturers of brush door sweeps for commercial doors behind the rail transportation industry had such a wise decision. The operation director of the well-known domestic rail transportation industry sent a letter eagerly looking for a sealed brush door sweeps for commercial doors that can pass the detection of fire smoke and smoke density.

It is known that a batch of brush sweeps for commercial doors previously purchased by the customer failed to pass the above test and was withheld by the US Customs. Before coming to Aoqun, the operation director had found several manufacturers of brush door sweeps for commercial doors, and the tests ended in failure.

This test requires that it is basically unheard of in China, while the customer is still anxiously waiting. After learning about the customer's test methods and requirements, Aoqun organized R & D engineers to work overtime and work harder. After half a month of repeated material selection and testing, Aoqun was very confident to submit a sample to the customer to do related tests in the United States. Good news came, the director of operation came to Aoqun excitedly, and signed a long-term cooperation agreement with Aoqun, and asked its engineers to include the material requirements and quality acceptance standards of Aoqun brush door sweeps for commercial doors in their brushes.

Today, brush door sweeps manufacturers Aoqun become millions of brush door sweeps for commercial doors for the domestic and international rail transportation industry. Only by connecting with international standards can company have a qualitative leap!