34490 - Miscellaneous metal work (Miscellaneous)
34494 - Fabricated bar joists & Concrete reinforcing bars
3449443 - - Fabricated bar joists: Short span (Open web)
3449447 - - Fabricated bar joists: Long span
3449452 - - Fabricated bar joists: Fabricated concrete reinforcing bars
3449499 - - Fabricated bar joists & Concrete reinforcing bars (Miscellaneous)
34496 - Metal plaster bases
3449611 - - Expanded metal lath
3449632 - - Metal plaster base accessories + Corner beads, Screeds, Grounds, etc.
3449699 - - Metal plaster bases (Miscellaneous)
34497 - Curtain wall
3449773 - - Curtain wall: Steel + Stainless
3449775 - - Curtain wall: Aluminum
3449779 - - Curtain wall: all other + Combination of Metals
3449799 - - Curtain wall (Miscellaneous)
34498 - Custom roll form products
3449811 - - Custom roll form products: Carbon steel
3449813 - - Custom roll form products: Stainless steel
3449815 - - Custom roll form products: Aluminum
3449817 - - Custom roll form products: other Metals
3449899 - - Custom roll form products (Miscellaneous)
3449XX0 - - Miscellaneous metal work (Miscellaneous - Volume)
3449XX2 - - Miscellaneous metal work (Miscellaneous - Speciality)