Magnetic Cap Tungsten Alloy Protective Tank is often made of high-density tungsten alloy material, with a rotating cap design (the conical hole on the top is the passage for the needle to enter the vial) and equipped with a lead glass observation window, which is convenient for medical staff to safely handle radioactive drugs under shielding protection. Magnetic Cap Tungsten Alloy Protective Tank can be used together with a tungsten shield equipped with a syringe, mainly used to help medical staff in the field of nuclear medicine to safely decay and extract isotope drugs. The operation process is: first install the empty syringe in the syringe shield, then insert the needle into the conical hole on the jar containing the radioactive drug, and directly use the suction of the syringe to suck the drug in the jar into the syringe.