Mr. Zhou is the purchasing manager of a glassware company. Some time ago, he called Aoqun Sales Xiaowu and said that the quality of the test tube brushes small diameter was not stable. After using for a period of time, the customer found that there were bending, losing filament, etc. He asked Xiao Wu to visit him with a model to discuss cooperation matters.

The next morning, Xiao Wu brought a model to visit Mr. Zhou, and introduced him the test tube brushes small diameter made by Aoqun. This test tube brushes small diameter is made of pure nylon with a rebound rate of up to 99.9%. The new PA is rubbed at a speed of 1 million times without deformation, thereby eliminating bending and filament loss. It has the characteristics of aging resistance. At the same time, the test tube brushes small diameter of Mr. Zhou ’s original supplier ’s pull force is less than 3KG, which is prone to filament loss. Later, Xiao Wu left the model for Mr. Zhou to test.

Ten days later, Mr. Zhou called Xiaowu and said, "The test tube brushes small diameter samples provided by your company have been tested by the technical department, and there is no bending or fluffing. The quality is really guaranteed, and Aoqun's products are really good."