Group 1 - The company Baosight Software has announced that its Tianxing T4 series PLC is being fully applied in the upgrade and transformation system of Meigang's 1422 hot-rolled heating furnace, replacing the original large foreign control system [2] - The Tianxing T3 and T4 series PLCs are fully capable of replacing foreign medium and large PLC products, showcasing the company's advancements in autonomous and controllable technology [2]