1，Adopt Japanese precision O-ring, durable for more than 10 years，If there is repair, the feeding precision still exists。

2，Easy maintenance, all O-rings can be replaced without removing fixing screws，

3，When continuous punching, the stability is very high. When adjusting the size and air volume, it is very effective and sensitive.

4，Feeding special type，Easy to modify

5，Can feed forward or backward（Two screws can be loosened and tightened）

6，Fast customization and low price