This U.S. industry comprises establishments primarily engaged in (1) manufacturing flat glass by melting silica sand or cullet or (2) manufacturing both flat glass and laminated glass by melting silica sand or cullet.

Including:

• Flat glass (e.g., float, plate) manufacturing
• Glass, plate, made in glass making plants
• Insulating glass, sealed units, made in glass making plants
• Laminated glass made in glass making plants
• Stained glass and stained glass products made in glass making plants