spherical lens

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spherical lens
Posting date : Aug 08, 2006
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HS-CODE
90-
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Detailed Description
Material: optical glasses, crystal glasses Dimension: 3-300mm Focus tolerance: +/-1% Center thicknes tolerance: +0.0/-0.1mm Centerationg drviation: +/-0.1mm Frings: 1-5 Irregulurity of frings: 0.1-1 Surface quality: 10-5 best Clear aperture: 90% bevel: 0.2*45deg Coating: specified by customers

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