blue glass QB23
QB1--QB5,QB9--QB13,QB16--19,
QB21--QB24,QB26,QB29,BG38,BG39
Technical indicators:
1Surface quality: 0/0, 40/20 ~ 80/50
2 Surface Accuracy: 1/10 in, 1/4 into 2 into
3 Thickness tolerance: ± 0.01mm ~ ± 0.02mm
4 Parallelism: 5Arc second ~ 1Arc Minute
5. Processing range: up to 0.2mm thickness of the thinnest
6 Coating
7 steel