Min. Order Reference FOB Price
1 Piece US$1.00 / Piece
Product Description
Bk7 Material Optical Lens in Telescope Zoom Camera Materials All kinds of high quality optical glass, quartz and crystal Diameter 0. 2~350mm Radius R 1.5mm-∞ Center thickness tolerance ±0.01mm Diameter tolerance ±0.005mm Surface quality 20/10--80/50 Surface ...