Raylasers Sealing Ring For Precitec Protective Windows

31.5×24×3×2(For OSPRI/Precitec LightCutter Windows 30*5mm), 40.3×33×2.7×2(For Precitec ProCutter Windows 37*7mm), 54.5×44.7×3(For Precitec ProCutter Focusing Lens D37), 55.6×48.5×2.9(For Precitec ProCutter Focusing Lens D37)