... to 8m /minute. Applications This HB-1122501-GZ CNC stone engraver is the upgraded from previous models, it is equipped with ... water cooling circulation system, spray nozzle, specially designed for stone, glass and soft metal processing. Easy operation, sturdy, ... soft metal materials, for example, acrylic, PVC, Foam board, stone, copper, aluminum, plastic plate, wood, glass etc.Main Configuration ...