Section XIII — Articles of stone, plaster, cement, asbestos, mica or similar materials; ceramic products; glass and glassware
Subheading
701190
Other
Common commodities
X-ray tube envelopesRectifying valve glassesVacuum tube bulbsElectron tube componentsPhotomultiplier tube envelopesRadio valve glasses (RCA)Glass parts for electronic tubesHigh voltage envelope for X-ray tubesGlass housing for rectifiersThermionic valve enclosure