- Please fix the quantity error in (MQC502) Quartz Capillary Tubes (Four-hole Circular), O.D.: 2.45mm, I.D.: 0.2mm, Length: 25mm, (MQP317) Quartz Disc, Round, Diameter: φ17mm, Thick: 0.5mm, Type 1 Quartz, 190-2500nm, (MQC513) Quartz Capillary Tubes (Triangular), O.D.: 0.75mm, I.D.: 0.3mm, Length: 100mm, (MQC398) Quartz Capillary Tubes (Outer Square Inner Round), O.D.: 1.5×1.5mm, I.D.: 0.9mm, Length: 50mm products