1. Slip,transmutative and easy-extended.
2. Easy broken joint and wore edge.
3. Uneven surface produces more wasted cardboards.
4. Not thermostable and bad moisture absorbing function leads to unreliable coherency.
5. Outer joint with periodic impress loss.
1. Even and flat surface,wear-resisting,thermostable,strong anti-pull nature and does not distort.
2. Durable use.3.National patented product with stable quality.
4. The embedded and enclosed steel buckles joint technology avoids impress loss to cardboard.
5. Better moisture absorbing function,easy to clean and widely used different machines.
