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 ]

'block':11 'chemic':17 'general':13 'glass':2,6 'industri':18,21,25 'optic':20 'plate':9 'quartz':1,5 'rod':8 'semiconductor':24 'semifinish':4 'tube':7 'use':14

[ 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 ]

'cell':17 'chemic':11 'devic':29 'electron':12 'equip':2 'filter':35 'glass':6,20,26 'industri':15 'inspect':19 'laboratori':1 'lens':31 'made':3,23 'mirror':36,38 'name':16,30 'optic':28,34 'plate':32,39 'prism':33 'product':22 'quartz':5,25 'semiconductor':14 'use':8

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