Double point refective lens Quarzt 30*5mm 650 1064HR 60 degree
* High Efficiency: High temperature Resistance Smaller Focusing Spot Size
* Durable: HR coating High reflective 99.8%
* Long Life Time: Not easy to crack Great Scratch Resistance
* Good optical heat, fast heat dissipation, suitable for use with laser tubes above 3000W
* It is made of multiple processes, cutting, spheronization, grinding, polishing, coating, and inspection, so it is more durable and not easy to demould.