These Non-Sparking Hydraulic Screw Jack 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.
| Model | Height mm | Lifting mm | Weight (g) | |
| Aluminum Bronze | Beryllium Copper | |||
| ZBYG-10B | 48 | 58 | 1600 | |
| ZBYG-20B | 56 | 67 | 2700 | |
| ZBYG-30B | 62 | 75 | 4600 | |
| ZBYG-50B | 72 | 88 | 7800 | |