Classification Information
Non-metal windows; non-metal patio doors; non-metal sliding doors; non-metal swing doors; non-metal windows, patio doors, sliding doors, and swing doors of wood clad in aluminum
Nonmetallic Building MaterialsNon-metal windows; non-metal patio doors; non-metal sliding doors; non-metal swing doors; non-metal windows, patio doors, sliding doors, and swing doors of wood clad in aluminum
Nonmetallic Building Materials