cnc wire edm DK7720 linear guide rail high ... tool is composed of the machine tool bed, coordinate worktable, wire drive device, wire support, operation liquid system, ... , wire support and floodlight.2 Coordinate worktable: The coordinate worktable is composed of the worktable, lower trailing bar, precision roller (slide ... liquid according to the mixture ratio.DK7720 cnc wire edm cnc wire edm DK7720