Features：

Eight contact points on the arms for evenly distributed clamping force；

High strength T-shaped guide groove and integral clamping arms to reduce the dead weight;

Integral vulcanization of aluminum plates;

It is equipped with a 4-stage pressure regulating valve to adjust the pressure for different loads, which features a U.S-made valve spool for reliable performance；

Specific clamp plates for various application；

ISO 2A and 3 are interchangeable.