Shielding frame is a key equipment used for electromagnetic compatibility (EMC) testing, mainly used to isolate external electromagnetic interference, ensure the purity of the testing environment and the accuracy of the test results. It is usually made of materials with high conductivity and magnetic permeability, which can effectively shield external electromagnetic waves and prevent interference with internal testing equipment or the tested equipment. Shielding frames are widely used in the research and development, production, and certification stages of electronic products, especially in wireless communication, automotive electronics, medical equipment, and other fields, to ensure that products comply with international electromagnetic compatibility standards.