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#lead metal #toxic metal #pb #grey metal #lead poisoning #radiation shielding

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#nuclear reactor #reactor core #containment vessel #pressure vessel #radiation shielding #nuclear energy

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#nuclear containment #radiation shielding #safety check #reactor safety #verified safe #nuclear protection

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#radiation shielding #x-ray protection #lead shield #dense material #nuclear safety #gamma rays

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#radiation shielding #lead shielding #dense material #gray metal #heavy element