... 2.Feature1,Equipped with preliminary water device, it is not less than 200 mm that nozzle from material surface distance, ... head, good abrasion resistance, long service life3,Driving shaft and driven shaft using shaft pin stationary and the whole processing, coaxial degree ... Angle with the definite direction fixed on the shaft , nut fastening, or so shaft position clear, easy to assemble5,The machine ...