... , sheath which are widerly used in the furnace of single crystal and polycrystal Material Quartz glassPurity :More than 99.99%Characteristic ... , sand blasting, polishing, bending, cutting, pinching, burning mouth and so on The special one, pls kindly send me the ... drwaingApplication: Widely used in the filed of semiconductor, metallurgy, chemical industry, electric light source, photo ...