It has a small size, lightweight, easy to carry, easy to use features. It not only can play in research and industrial production classification marking role but also in the field of commercial and home are still widely used in the production process, also has its unique carved usefulness. The instrument provides a fastest and most easy to remain permanently the material method, which can be on metals, ceramics, plastics, wood engraving almost all materials, crafted.
Cyclical nature of the use of AC frequency drive forced vibration produced written work, so the work process will produce will be able to withstand the sound is normal ( because the market for all of this principle lettering pen has a