cnc wire edm DK7720 linear guide rail high efficiency ... is composed of the machine tool bed, coordinate worktable, wire drive device, wire support, operation liquid system, electric parts and ... tray shape.On the bed, there are worktable, wire drive device, wire support and floodlight.2 Coordinate worktable: The ... operation liquid according to the mixture ratio.DK7720 cnc wire edm cnc wire edm DK7720