The scope of application of this product series is divided into patient and operator (doctor) protection use. Patient protection is applicable to the protection of primary radiation and stray radiation including secondary radiation of medical X-ray at or below the voltage level of 150kV; operator protection is applicable to the protection of stray radiation including secondary radiation of medical X-ray at or below the pipe voltage of 120kv.

Its physical mechanism: through the photoelectric effect and Compton effect of a variety of heavy metal elements and X-ray or γ - ray in the product material, the attenuation or shielding effect of X-ray or γ - ray can be achieved.