Beijing, Nov. 27 -- Shanxi Shenpeng Jewelry Co Ltd has filed a patent application for Raw Material Welding Equipment for Gold and Silver Jewelry Processing and Manufacturing. This invention was developed by Yang Hairui, Wang Binbin, Ming Jinlu and Zhang Chunling. The patent application number is CN202510149959 20250211. The p..

Beijing, Nov. 27 -- Yaan Perfect Jewelry Ornaments Co Ltd has submitted a patent application for Conveying Device for Rhinestone Polishing and Grinding Production Line. This invention was developed by Zhu Jinsong. The patent application number is CN202510190171 20250220. The patent publication number is CN119871219 (A). Inter..