Blue Lasertree LT-450025-PM-FC 25mW Polarization Maintaining Fiber 1m 3.5μm FC，SMA905，FC/APC NOT. Blue Lasertree LT-488020-PM-FC 20mW Polarization Maintaining Fiber 1m 3.5μm FC，SMA905，FC/APC NOT. Protect your yourself from the laser when you operate on it.
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