- Aluminium Bronze material, both non-sparking and non-magneticAdopt die forging technology, die-forged by large friction pressing machine
- Jaws bite together closely, anti-slip, steady and strong, with large torque
- Worm knurled nuts. Improve work efficiency, flexible movement, with ruler to make the adjustment easier
- Use electrolytic copper as the main raw material, applied in flammable and explosive places