It is the use of modern microcomputer automatic control system and expanse combine to achieve a mechanical machine intelligence operations, therefore you do not need in the construction of the wall on the dot or red bars powder can guarantee a smooth vertical and horizontal walls, automatic retractable stand Automatic pressure light pole across the room to achieve a construction job and adapt in different height of the room, unique folding hopper will automatically drop the folding top, it is entirely possible to the top of the powder, automatic wiping plate downstream activities when