Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
We told Kay about test tube brush meaning science, which is used to clean the test tube so that the test tube can be reused. The size of our test tube brushes is customized according to customer needs. We can customize the test tube brush to fit each test tube according to the conventional test tube size on the market. The size of the test tube brush we often make is 15-20mm in diameter and 180-230mm in total length. If there is any need, such as wishing the diameter to be larger or smaller, or overall longer or shorter, we can customize it for them. We sent our test tube brushes with a diameter of 18mm and a total length of 200mm and a diameter of 20mm and a total length of 230mm to Kay as samples.
https://www.aoqunbrush.com/