The three cylinders are machined using a high-precision CNC machine tool. The CNC process ensures the precise size and shape of the product, while ensuring the smoothness of the surface, giving it a mirror-like effect. This process makes the edges of the product extremely delicate, both the top and bottom edges, are carefully polished and trimmed, showing the perfect line and outline.

After CNC machining, the surface of the product is electroplated. The electroplating layer is golden yellow, which not only increases the beauty of the product, but also improves its corrosion resistance and wear resistance. The electroplated coating evenly covers the surface of the cylinder, creating a sharp contrast with the black base and top edge, making the product more eye-catching and attractive. The black base and top edge may be achieved through a special plating or oxidation treatment, which not only plays a role in fixing and supporting, but also adds a sense of design and layering.