Test tube brushes are generally not available off the shelf and need to be custom-made. A few samples can also be produced at a slightly higher price. For bulk orders, prices can be discounted. For large quantities, special VAT deduction invoices can be issued. For specific details, please contact customer service (15856510702, Engineer Xu).

Pipe brushes are commonly used for deburring inside hydraulic valves, polishing the inner surfaces of cylinder liners and pistons, cleaning steel barrels, test tubes, boilers to remove scale, and deburring inner holes of metal parts. 1. As an emerging brush product, pipe brushes have a wide range of applications. They are often used for deburring hydraulic valve holes and edges, deburring cross holes, deburring air conditioners and refrigerators (compressors), deburring cylinder blocks, and processing engine parts, machining, inner hole processing, and brake drum processing. They are also suitable for polishing elliptical, conical, and Venturi-type holes. Spherical brushes can easily and quickly perform surface treatment on cylinders, valves, cavities, and pipes of various shapes and sizes. Polishing brushes can automatically center and calibrate to finely and consistently process hole surfaces without affecting the original precision and dimensions of the workpiece. They are convenient, safe, economical, and highly effective. 2. Pipe brushes also play an indelible role in medicine or pipelines. They can clean both sides and the top of pipes, even deep ones, as the new tailed test tube brushes have emerged as shown. 3. Pipe brushes are used to clean or coat the inside of pipes, while brushes for coating the outside of pipes are generally ordinary bristle brushes.