1、Exterior cladding panels: cold-rolled steel sheet / 304 stainless steel (1.5–2.0 mm); anti-corrosion spray coating;
2、main load-bearing structure: thickened steel square tube integral welded frame (designed to handle the substantial self-weight of the door assembly, ensuring resistance to deformation and preventing sagging);
3、core shielding layer: 99.99% high-purity electrolytic lead plate (with seamless butt joints to completely eliminate any radiation leakage points);
4、sound-and-light warning system; internal and external installation of the door assembly: pre-warning (continuous delayed activation) + red light illumination alarm—where the two signals are distinctly distinguishable.
5、Indoor emergency stop button: Emergency stop buttons are installed at multiple locations within the radiographic examination room, enabling indoor personnel to manually shut off the radiation source.