... Glass Products SeriesZCQ Main products: 1. ORDINARY QUARTZ PRODUCTS: QUARTZ PLATE, QUARTZ TUBING, QUARTZ ROD2. SIO2 SPUTTERING TARGETS: Grain, Wafer, ... Disc, Panel, Plate, Ring, Block3. CNC High Precision CNC Quartz Parts: With the ... lensIf you are interested ,pls feel free to contact us . Square Optical Quartz Glass Plate /Polished Quartz Disc