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