Short Description:

The retractable hydraulic spear is used for fishing hollow-structured fish. When fishing, the spear is inserted into the top of the fish, a certain tonnage is applied, and then the fish can be fished out by lifting it up. If the fish is stuck and cannot be raised, just start the pump on the ground to pressurize, and the spear slips retrieve droping fish. After the salvage is successful, the salvage spear can also be separated from the fish by pressurizing.