The metal cards currently in circulation are mainly based on brass, stainless steel, and aluminum. The same process for making the same price is based on this principle. Since the material is different from PVC, the production method is completely different and requires another production line and value. It is usually a strong card manufacturer that can produce high quality metal cards. Metal Cards Metal cards are usually made by etching, electroplating, electrophoresis, polishing, and screen printing. In the production process, different adjustments are made according to the needs of the customers to achieve satisfactory results.
According to the metal card technology, the metal cards can be divided into: two-dimensional code cards, chip cards, full-color printing cards, ink cards, mirror cards, portrait cards, matte cards, antique cards, diamond cards, hollow cards and other series of metal card.
Metal card coding process is mainly divided into printing convex code, concave and convex code, corrosion convex code, corrosion concave code, manual bump code these four kinds:
(1) Indentation code is as follows: Metallic card printing The convex code shows that the color of the number is the same as the color of the metal plating on the surface of the metal card, and the screen printing ink of the number box is generally selected to be similar to the color of the plating layer.

(2) Embossing codes are as follows: Metal card The embossed code shows that the color of the number box is the same as the color of the metal plating on the surface of the metal card, and the ink color of the silk screen number can be arbitrarily selected.

(3) Corrosion convex code is as follows: Metal card Corrosion convex code shows that the number frame is etched concavely and the number is convex.