Manufacturers and distributors of electromagnetic compatibility (EMC), RF/microwave, and antenna test equipment; anechoic chambers; electromagnetic shielding rooms; EAD simulation software; as well as materials—including EMI shielding materials, microwave-absorbing materials, thermally conductive and heat-dissipating materials, microwave‑related materials, and magnetic materials—along with EMC/RF/microwave components such as filters, power amplifiers, electrostatic discharge devices, and circuit protection products, together with domestic and international renowned safety‑compliance and testing centers, laboratories, and certification bodies（Copyright of this content belongs to Juzhan. Reproduction without permission is prohibited）