... Series 2.Optical 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 ... are interested ,pls feel free to contact us . Square Optical Quartz Glass Plate /Polished Quartz Disc