Mr. Li is the largest supplier of medical supplies in the country. There are more than 200 styles of test tube brushes involved, and the frequent replacement of test tube brushes is very large. Mr. Li has recently received many customer complaints, because a small test tube brushes 1/4 inch diameter has loss filament, which caused many medical supplies to have filaments remaining in the pipeline after cleaning, which caused serious consequences.

Mr. Li found Ms. Chen of AOQUN on the online promotion platform. After listening to Mr. Li ’s situation, Ms. Chen quickly analyzed that the filament problem of the test tube brushes 1/4 inch diameter was because the pull force was not up to standard. Each batch of test tube brushes 1/4 inch diameter produced by Aoqun was based on the brush quality. The standard is strictly enforced. The pulling force of 5 filament is ≥3 kg, which can fully meet the requirements of the test tube brushes 1/4 inch diameter in normal environment. Mr. Li immediately asked Miss Chen for a brush sample.

Three days later, Mr. Li received the sample and made a comparison of the tension of the test tube brushes 1/4 inch diameter. It was indeed that the previous brush had insufficient tension. After serval times of frictions, the filament will fall off. The test tube brushes 1/4 inch diameter 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.