Korea 3d crystal laser subsurface inner engraving machine facotry choose RFH Water cooled uv laser  Expert II 355 series UV DPSS laser, developed and produced by RFH, covers 3w-10w in laser power with short pulse width (<14ns@30K) ,superior beam quality (M²<1.2) and perfect laser spot quality (beam circularity >90%). It is specifically designed for SLA 3D printer, laser marking machine, high precision cutting machine, high precision drilling machine, laser wire stripping machine, Er:YAG laser cosmetic instrument, glass inner engraving machine and so on.