... Density: 2.2 ( g / cm3 ) AOBO main products: quartz tube, quartz rod, quartz apparatus, quartz ball. Quartz crystal, quartz weight ... production of low ozone quartz ultraviolet germicidal lamp.Quartz tube diameter in the range of 6mm-300mm, a round, flat shape ... -proof, explosion-proof features.The products are widely used in electronic semiconductor and solar cystatin v. Aquarium lamp, disinfection ...