... ISO9001,ISO14001,OHSA18001 crystal powder,quartz sand,produce crystal powder The product is widely used: halogen lamps, mercury lamps, ... copiers lights, water treatment lamp casing, all kinds of quartz vessels, pipelines and other fields. quartz tube, clear quartz tube, twin ... Youngs modulus (Pa) 7.3 × 105 Application: Application The product is widely used: halogen lamps, mercury lamps, single- ...