Accessory lens
Accessory lens, Total:2 items.
The international standard classification for "Accessory lens" includes: .
The Chinese standard classification for "Accessory lens" includes: .
CU-NC
- NC 90-19-1971 Manometer accessories Sealing washers Lens-shaped packing rings
German Institute for Standardization
- DIN 58761:1987 Production in optical engineering; lens block holders with outside fitting
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