... system 3.LCD display, USB interface Mahjong table engraving machine:Technical Parameter :ModelSF1325 or depends on your ... height200mmThe diameter of the knifeΦ6,Φ12.7The engraving instructionHPGL,G codeKnife pressure0.7KpaCleaning power2.2KWAbsorption power5KWWorking ... imported strait line square contrail, double line and 4list block, high bearing strength, stable running, high precision, high ...