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Material: ..................................................ZnSe Dimension Tolerance:............................+/-0.1mm Thickness Tolerance:............................ +/-0.1mm Surface Accuracy: ........................................¦Ë/4 Surface Quality: .......................................60-40 Parallelism: ..................................................<1' Clear Aperture: .........................................>90% Bevelling: ............................................0.2¡Á45¡ã Coating: .....................................Custom Design |