... ISO14001, OHSAS18001 Advantage: cost price controlled well, high precision, good quality.Product:quartz sleeve, opaque quartz tube,milky quartz/ large ... crucible,Clear quartz crucible, silica crucible,quartz labware,high purity quartz crucible,quartz crucilbe Our clear fused quartz glass ... s Modulus: (Pa) 7.3 × 105 Application: The product is widely used: halogen lamps, mercury lamps, single-ended lamp ...