Zhejiang Zhongzheng Lock Industry Co., Ltd was established in the early 1980s. ZONZEN specializes in the production of high and low voltage switch cabinet locks, electronic cabinet locks, Bluetooth fingerprint padlocks, smart U-locks, and other electrical cabinet accessories. The company has passed ISO9001 international quality system certification; ISO14001: 2004 environmental management system certification; GB /T28001-2001 occupational health and safety management system certification.