... accuracy,swift speed,no pollution,low noise,stable functionNo contact and machanical distortion,perfect design effect,easy to cut metal, ... steel,spring steel,copper plate,aluminium plate,other metal plates and pipesTechnical Parameters:Max.Outout Power: 200W/400W/500WLaser Wavelength: ... ±0.01mmElectric Power Demand: 380V/50Hz/100ACooling System:Water cooling YAG steel cutter for casting and molding