... without a break.2.Working process is no pungent smell, no poison, no noise, no dust, no pollution.3.Full automatic safty device, stop ... cost greatly increases.Scrap rateSimple operation and easy learn, no corrosion edge, leave out phenomenon, scrap rate is extremely ... rate is very high.PollutionWithout excitant odour, non-toxic, no corrosion edge and leave out phenomenonStrong corrosion, pungent smell. ...