AdValue Technology specializes in areas of Alumina, Fused Quartz, Sapphire and Zirconia. Products vary from Crucibles, Tubes & Rods, Plates & Discs, DTA & DSC Sample Pans, Ceramic Membranes to custom components. Laser machining and metallization coating services are available. We also sell high purity powders including Alumina Powders, Quartz Sands, Tellurium Dioxide Powders and Cerium Oxide Polishing Powders. We ...