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Optics N-Bk7/HK9l/UV/Fused Silica/Jgs1 Optical Lens with Bbar Coating, Find Details and Price about Glass Lenses Double-Convex Lens from Optics N-Bk7/HK9l/UV/Fused Silica/Jgs1 Optical Lens with Bbar Coating - Tianjin Tengteng Optoelectronic Technology Co., Ltd.