Beam Drilling Line, CNC Angle Line, H Beam Machine manufacturer / supplier in China, offering Awt9000 Steel Construction Gantry Movable High Speed CNC Drilling Machine for 3000-10000mm Length, Awt2016high Speed CNC Plate Drilling Machine for 2000*1600mm Steel Structure Tube Sheet Flange Max Thickness 150mm, Gantry Structure Steel Plate CNC Drilling Machine for Steel Building Bridges Tube Sheet Boiler Sheet Tube Plate and so on.