HOQ

[ laboratory equipment made of quartz glass for use in the chemical, electronic, and semiconductor industries, namely, cells and inspection glasses; and products made of quartz glass for optical devices, namely, lenses, plates, prisms, optical filters, mirrors, and mirror plates ]

quartz glass and semifinished quartz glass [ tubes, ] rods, plates and blocks for general use in [ the chemical industry, ] the optic industry [ and the semiconductor industry ]