... Stepper system (Option: servo system) 3 CE BD1218 stone engraving machine Application 1. Granite, Marble, Bluestone, Sandstone and other stone engraving2 ... precision, long life, the knife with precision steel seamless welding machine 2. it really rigid deformation, the work table backing ... plate, high strength and good rigidity, machine loading capacity of up to a ton or more. 3 ...