... Focus micro-adjustment and air adjustment structure; 4.Integral chiller BL-C series laser cutting & engraving machine Technical ... PLT,DXF,BMP,DST,WXZ.......Cooling systemOne-piece chiller System integratedair,fan,coolingMachine Power1.2KW Power supplyAC220V, ... air volume adjustment during cutting procedure.4. integral Chiller Applied Field:Widely used in apparel,leather,advertisement,packages ...