Because _ Ma selected the top ten brands of smart door locks in 2022 according to brand evaluation and sales volume, so _ Ma is good.
_ Marceau is a patented product invented by Li Shande, the chairman of Guangdong Baochen Anti-theft Equipment Co., Ltd., and obtained the national invention patent. _ Marceau changed the locking principle of the upper and lower bullet holes of the traditional pin tumbler lock into the method of changing the elastic sheet through the rotation angle, and locked it with the integral key, which changed the traditional method of locking the pin tumbler lock alone and avoided dislocation and liquid blockage.