WHO WE ARE? YONGFA, which was founded in 1988, owns around 30 years experience of manufacturing&designing safes, and has passed certificates of ISO9001&ISO14001, CE, UL, ROHS and 3C. As a scientific and technological enterprise, we specialize in researching and manufacturing safes, such as burglary safe/fireproof safe/gun safe/bank vault door/electronic safe/mechanical safes, etc. And be labeled as "The Top 10 Brands of China" in safe industry. WHAT WE DO? We have set up our safe research center in developing products lines, and has gained more than 200 patents. Besides, we own precision instrument like 350T hydraulic machines, large-scale plate shearing machines, automatic...