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الشخص الذي يمكن الاتصال به Mr. ChunSheng
No.286 Torch Road, Changchun, Jilin
Supply kinds of Plano convex Si-lens, Bi-convex Si-lens, Plano concave Si-lens, Bi-concave Si-lens according to custom design. Material: Si(Silicon) Radius: /*0mm **- /***0mm Diameter: *0mm **- *0mm Surface accuracy: lambda/2 *- 2 lambda Surface quality: ****0 Centration: <3\&#**9; Clear Aperture: >*0% Chamfer: 0.2×*5° Coating: custom design
