Wan Jia group located in the hardware city of china,the group is a big-scare group company without regionality.aming to research and devolop,design ,produce and distribute the security door and security xxxxx is one of the chinese leading manufactures and exporters of security in xxxxx leading products antitheft,steel wooden armor door,interior door antitheft lock of products sales well at home and also enjioy a good reputation on aboard.