Ma Gong is a spare parts supplier of CRRC. The doors and windows produced by their company require a large amount of brush seal tape.

I understand that Ma Gong’s requirement is that the brush does not shed hair. In response to the customer's request, Ms. Aoqun Chen quickly responded. Ms. Chen said: “Aoqun specializes in the production of brushes, strictly controls the quality of the products, and prevents the lint of the brushes. With high-quality quality, it has won many brand customers in the rail transit industry such as CRRC, Faiveley and Viao. There are UL94-V0 flame retardant reports, as well as ROHS, SVHC and other industry standard reports."

After receiving the report, Ma Gong immediately confirmed it with his business colleagues. After confirming that the report was correct, Ma Gong told Ms. Chen Aoqun: "We have read your report. This is exactly the report we need. We can place an order for you."