The products of Juanzhi Industry (Chongqing) Co., Ltd. are widely used in the electronic circuit industry and serve as core supporting materials that determine the performance, reliability, and miniaturization level of printed circuit boards (PCBs). They are integrated into every key process of PCB manufacturing, from hole metallization and circuit plating to surface treatment, relying on high-purity and high-stability specialty chemicals to achieve precision processing at the micron or even submicron level.