We independently researched and developed the world's first integrated hollow column control room. The product adopts a variety of innovative structures, and the product technology has reached the international advanced level. It is superior to the competitive products in terms of transportation weight, disassembly and transportation convenience. It reflects the environmental friendliness and disassembly convenience in the process of user assembly and use;For the first time in the same tonnage, the new external cab system is adopted, which is convenient to disassemble and install, and has flexible rotation, which solves the problem that the structure of the cab is easy to tilt.