These Non-Sparking Screw Clamp are made of Aluminum Bronze and Beryllium Copper, it is a high quality grade beryllium copper alloy material and a standard grade aluminum-bronze alloy. These tools are non-magnetic and non-corrosion, very suitable used for LPG and LNG vessels, and oil-gas industry etc.
| B mm | Kmax mm | Weight (g) | |
| Aluminum Bronze | Beryllium Copper | ||
| 120 | 400 | 2200 | 2395 |