Mr. Li is the head of a chemical glass test tube company. Some time ago, he called Aoqun Xiao Liu, saying that he wanted to know the test tube brush and their function and purchased a large number of test tube brushes. Now they are looking for a manufacturer with guaranteed quality to cooperate, and we are asking Xiao Liu to visit him with a model to discuss cooperation matters.

Test tube brush description and function: the function of a test tube brush is to clean test tubes used in a science laboratory. They consist of twisted wire handles connected to filament that are made of nylon or bristle.

The next morning, Xiao Liu brought a sample to visit Mr. Li and introduced him in detail the nylon test tube brush and their function. This product is made of pure nylon, with a rebound rate of up to 99.9% new PA, a tensile force greater than 3 kg, and high-speed friction of 1 million times without deformation, thereby preventing bending. Aoqun's test tube brush and their function are very good, and meet Mr. Li's requirements.