Emt conduit-electrical metallic tubing
ANSI c80.3-1983 UL797

It is for protecting calbe wire.
Material: Pre-galvanised steel or hot DIP galvanised,

Size---outside dia. X thickness x length
1/2"----17.9mm x 1.07mm x 10ft.
3/4"----23.42mm x 1.25mm x 10ft.
1"-----29.54mm x 1.45mm x 10ft.
1-1/4"--38.35mm x1.65mm x 10ft.
1-1/2"--44.2mm x 1.65mm x 10ft.
2"-------55.8mm x1.65mm x 10ft.
2-1/2"---73mm x 1.83mm x 10ft.
3"-------88.9mm x 1.83mm x10ft.
3-1/2"---101.6mm x 2.11mm x10ft.
4" "------114.3mm x 2.11mm x10ft.

Bundle: 10 lth per small bundle