2. Easily produce different kinds of letters, like Seiko letter, Resin letter, Edged Aluminum letter, Brimless letter, etc,.
3. Easily mastered and manipulated, for a novice, 0.5 day to learn and use, 1 day to operate independently, and 3 days to master.
4. Easily save manpower and time cost.
5. Easily boost the production and perfect the letters' appearance.