Specifications:

• Origin: CN(Origin)
• Use: high temperature view equipment glass
• thickness: 0.5-50mm
• surface: 40-20 scratch-dig
• Structure: Flat lens
• size: upon your request
• Size: diameter 27.8mm
• Shape: available upon request
• samples: can offer
• parallelism: 3-5 arc minutes
• Packaging Details: Cartons
• Model Number: Sapphire
• Material: Sapphire glass
• flatness: 1/4 wavefront
• edge: ground and beveled