... ,ISO14001,OHSA18001 crystal powder,quartz sand,produce crystal powder The product is widely used: halogen lamps, mercury lamps, ... polished quartz tube, quartz tubing, heater quartz tube, quartz blister, quartz glass blister , quartz bulb, quartz labware, quartz crucible, crucible, ... Youngs modulus (Pa) 7.3 × 105 Application: Application The product is widely used: halogen lamps, mercury lamps, single ...