3a standard u-type teetee system: welding short tee welding long tee long reducing tee y type teefeatures:material: astm 304, 304l, 316lspec: astm a269, a270size range: 1/2 quot, 3/4 quot, 1 quot, 1.5 quot, 2 quot, 2.5 quot, 3 quot Each pc per ploywood, then 120pcs by carton, finally in plywood box