Mr. Li is the nation's largest supplier of medical supplies. There are more than 200 test tube cleaning brush styles involved, and the test tube cleaning brushes are frequently replaced. Mr. Li has recently received many customer complaints, because a small filament brush has lost filament, which caused many medical supplies to have filaments remaining in the test tube after cleaning, which caused serious consequences.

Mr. Li found Ms. Chen on the online promotion platform. After listening to Mr. Li ’s situation, Ms. Chen quickly analyzed the test tube cleaning brush to remove filament because the product pull force was not up to standard. Every batch of brushes produced by Aoqun were processed according to the brushes quality standards, and the pulling force of 5 filaments is ≥3 kg, which can fully satisfy the use of the test tube cleaning brush in normal environment. Mr. Li immediately asked Miss Chen for a test tube cleaning brush sample.

Three days later, Mr. Li received the sample and made a comparison of the tension of the product. It was indeed that the previous brush had insufficient tension. After a few frictions, the filament will not fall off. The test tube cleaning brush produced by Aoqun is the high-quality brush he needs. An annual agreement was signed on the same day and a small batch of trial production began.