TD.TD was established in 2003 as a specialized manufacturer of power station insulator products, particularly high-voltage and ultra-high-voltage rod-type porcelain insulators. The company's flagship products span AC ratings from 110kV to 1100kV and DC ratings from ±500kV to ±800kV. With robust technical capabilities, its independently developed ultra-high-voltage products have filled domestic gaps and achieved international cutting-edge standards. TD possesses advanced domestic production and testing systems, including multiple isostatic pressing lines, imported spectrometers, CNC trimming machines, fully automated drawer kilns, and precision glazing equipment. Rigorous quality control at every stage—from raw materials and forming to firing and glazing—establishes a solid foundation for product excellence and reliability.