... small and machine form is hard to change. Cutting seam is smoothful and nice.4,High cost perforamce ratio,the price is only ... 1/3 of that of CO2 laser cutter and 2/5 of that of CNC punching machine.5 ... , subway line spare parts, etc.Applicable Materials for this YAG laser metal cutting machine:staineless steel, carbon steel, alloy steel, spring steel, copper, aluminum ...