2 inch 3 inch
Diameter: Φ50.8±0.1mm Φ76.2±0.1mm
Thickness: 0.35-0.50 ±0.01mm
ST-CUT Y- 34°、Y-36°、ST-42.75°±5′
Base level: 18±2mm 22±2mm
Inclination Angle: ≤±5′
Surface Finish: one side polished or Double side polished
Bent degree: ≦２０um
Quartz seed: In the center，≤5mm
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