The products and technical services of Juanzhi Industry (Chongqing) Co., Ltd. possess multi-faceted application potential in the printed circuit board (PCB) precious metal recycling and utilization industry, particularly exhibiting significant synergistic value in the treatment of heavy metal-containing wastewater, compliant disposal of hazardous waste, and the research and development of electronic specialty materials. When applied to the recovery of precious metals from waste PCBs, the products can provide a full-chain solution for resource recovery projects, ranging from "chemical support" to "environmental compliance".