The main structure of the machine is reversed T type, with full moving column structure, large span design, high rigidity. The worktable and tools can be changed automatically in machining. By one time clamping, the various process, including milling, drilling, reaming, boring, tapping, et conn the four faces can be finished. Modern control concept, compact structure design, guarantee high efficiency and high precision in the single part or small & middle batch parts producing and suitable for complex machining of box type parts.