DZC3030,DZC4040,DZC5050 CNC plate drilling machineMachine Tool Usage:This machine is mainly used in ... such as electricity, petroleum, chemical, boiler flanges, heat exchanger tube plate parts processing, you can save them one by one crossed the ... of the bed, floor space savings. Bed, beams with steel plate welded structure, after artificial aging treatment, accuracy and stability. Optimize ...