1. Strong Clamping 10% more powerful than international same type products;

2. High matching accuracy unfitness of butt joint is below 1mm;

3. Opeation: maual moving

4. Patent design square linkage between ord and clamp shoes,. It improves crash proof capacity and twist proof capacity of clamp shoes. It decreased the obstacle rate and change frequency of spare parts so that it improves the project accuracy and effect.