To meet the high-frequency transmission demands of 6G communications, Huawei and Zhongtian Technology jointly developed "Quantum Shield" special cables that have passed authoritative testing. The cables achieve 120dB electromagnetic interference shielding effectiveness in the 30-300GHz frequency band, a 40% improvement over traditional products. Utilizing a new metal-polymer composite shielding layer, the product maintains flexibility while providing full-frequency band shielding coverage. The first batch will be deployed in 6G trial base stations in Beijing and Shanghai, with mass production expected in the second half of 2026.