On Wednesday November 2016, Brian of Romania emailed us a picture of the brushes for escalators that their company is currently using. Brian found a very serious problem that more than 60% brushes has discolored, like a silver ring snake. Brian told us: "Because of the discoloring problem of brushes for escalators, we had received complaints from customers, I am afraid if the problem can’t resolve, our company's reputation will be getting worse."

According to his feedback, Anna, our sales elite, immediately gave us a specific answer. The biggest reason for the discoloring is for the impure material contained in the brushes. AOQUN brushes for escalators are made of 100% pure material. Over the years, we have obtained word-of-mouth recognition of our customers. All Customers who buy from us said that the discoloring problem is never found with AOQUN brushes for escalators from installation to replacement. On the same day, we sent Brian the samples for confirmation. About five days after receiving our samples, Brian confirmed the quantity of bulk order with us.

On May 2018, we received a thank-you note from Brian. He said: "Thanks to AOQUN, now our brushes for escalators has 0 complaints. We will surely recommend you to more our customers.”