12 ft x 2 in Armstrong 1 1/2 in Co-Extruded Clean Room Main Beam - EA7903
2 ft x 2 in Armstrong 1 1/2 in Co-Extruded Clean Room Cross Tee - EA7927
2 ft x 2 in Armstrong 15/16 in Co-Extruded Clean Room Aluminum Cross Tee - EA7920
4 ft x 2 in Armstrong 1 1/2 in Co-Extruded Clean Room Cross Tee - EA7947