Glass, unworked or semi-worked, except building glass; silica glass, unworked or semi-worked, not for building; unworked or semi-worked glass, except building glass; silica glass tube not for scientific purposes

'build':8,19,27 'except':7,26 'glass':1,9,11,25,28,30 'purpos':35 'scientif':34 'semi':5,15,23 'semi-work':4,14,22 'silica':10,29 'tube':31 'unwork':2,12,20 'work':6,16,24

Parts for medical apparatus and instruments, namely, structural parts of surgical instruments and silica glass capillaries as structural parts for instruments for medical tests

'apparatus':4 'capillari':16 'glass':15 'instrument':6,12,21 'medic':3,23 'name':7 'part':1,9,19 'silica':14 'structur':8,18 'surgic':11 'test':24

Silica glass for optics purposes, namely, optical lens blanks made of glass; optical glass fibers; optical glass lenses

'blank':9 'fiber':15 'glass':2,12,14,17 'len':8 'lens':18 'made':10 'name':6 'optic':4,7,13,16 'purpos':5 'silica':1

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