The YJ3508 series manual mechanical operating rod is used to control the bottom valve of each container at the bottom of the oil tank at the center of the oil tank through 1 to 5 steel wire ropes. Moisturizing, and the tight anti -fall wiring head will be released to ensure that the underwater valve is closed and effectively avoids accidents.
| Product number | Quantity of the handle | weight（kg） |
| WD3508-1 | 1 | 2.4 |
| WD3508-2 | 2 | 3 |
| WD3508-3 | 3 | 3.7 |
| WD3508-4 | 4 | 4.5 |
| WD3508-5 | 5 | 5.6 |