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B488-MMF60
G505-MMF60
G520-MMF80
R638-MMF100
G532L004-12x39.5-X-(-30-50)-10
G532D004-12x35-1.0-(-30-50)-10
G545D010-12x35-1.0-(-30-50)-10
Bismuth Trborate
B450D050-40x20x10-1.0
Model:B488D050-70x40x45-1.0, High Stability and Pointing Stability, Low noise, Compact Size
Model: B488D030-66.8x23x22-1.5 Special Compact Design, High Reliability and Stability