F4B is a high-frequency material produced by Taizhou Wangling Insulation Materials Factory. It primarily uses PTFE as the substrate, filled with fiberglass cloth and nano-level ceramic film. F4B PCBs are designed for applications that require excellent electrical performance, particularly in microwave and RF circuits. F4B PCBs offer low dielectric loss, high thermal stability, and superior chemical resistance, making them suitable for demanding environments. The F4B material possesses unique properties that significantly reduce signal degradation, which is essential for high-speed data transmission. This characteristic ensures that signals maintain their integrity over long distances and through complex circuit paths. Furthermore, F4B PCBs are capable of accommodating intricate circuit designs, allowing engineers to develop compact and efficient layouts that optimize space and performance. As a result, these PCBs are extensively utilized in various industries, including telecommunications, aerospace, and automotive.