Due to the manufacturing process of a non-complicated bez. Thus, the tools used in the production of the trial procedure. Use the same principle to produce a real different size only.
Because the production process is not complicated bez. Therefore, the tools used to produce the experimental stage. The same principles apply to actual production. Differing only in size.
Because the manufacturing process of bez not complicated. So the tool used in manufacturing in the process of experiment. It uses the same principles with the actual production. Different size only .