... )Laser Beam Transmit and focus systemThe system consists of the reflector mirror, output mirror, laser shutter, aperture, Beam expernder, Focus lens ... moving:1200 mm, Axis-Y moving 1200 mm.Cutting worktable size 1200 mm*1200 mm,(7)Gas protection systemAdopt coaxial gas ... 1Special Tools 1 YAG 300W 400W 500W sheet cutting machine,large size cutting machine