Mr. Sun is a wholesaler of test tube brushes. Recently, some customers found Mr. Sun and looked for green test tube brush. Mr. Sun has done test tube brush wholesale for many years and has never sold green test tube brushes. This stumped Mr. Sun. After searching for a long time, he couldn't find the corresponding cooperative manufacturers to cooperate with.

Through the introduction of others, Mr. Sun found Mr. Zhou from Aoqun Brush. By understanding the needs of Mr. Sun, Mr. Zhou told Mr. Sun: "Aoqun Brush is a professional manufacturer of brush. The company has a complete upstream filament factory, who can customize the color of the material according to different customer needs. Aoqun can not only produce green test tube brush, but also red test tube brush, yellow test tube brush and other color brush products. All products have obtained third-party certification and have A number of patents. "In order to verify whether Aoqun's products are used by Mr. Sun, Mr. Zhou mailed samples of brushes for Mr. Sun.

After receiving the samples, Mr. Sun contacted Mr. Zhou and affirmed Aoqun's products. Mr. Sun said: "Aoqun's green test tube brush is very good. It is the product we need, and then we will purchase according to the sample given by your company. "The next day Mr. Zhou received an order for 500 sets of test tube brushes from Mr. Sun.