A jigsaw puzzle copper door with a strong visual impact. With its overall slenderness, it is made up of N numbers of "7" shaped accessories, divided into the upper and lower parts are divided. The upper part is a fixed part, and the lower part is an unequal double door. Thickened national standard hot-dip galvanized sheet forming skeleton, T2 material copper plate composite; purely hand-forged "7" shaped accessories with unique texture, with surface treatment after a number of processes such as stamping, fine welding, grinding, acid pickling, drawing and other processes, advanced environmental protection fluorocarbon protective paint spraying, hand-assembled, build-in handle, integrated with the original board. Germany Heinrichs 18 lock points long strip mechanical lock, integrated linkage insert bolt, three-

dimensional adjustable concealed hinge, automatic dust strip.

Traditional craftsmen have always been pursuing the artistic nature of copper ornaments, and fine carving is one of them, such as deep carving, shallow carving and shell carving. The jigsaw puzzle bronze door carved from the Nnumber of "7" shapes makes the home art of the building sublimate to its extreme. The strong visual impact and also modern bronze door become a rare collection between the opening and closing.