... .Type:carbonsteel elbow 3.Material:carbon steel 4.Connection:We 90 Degree SquareTube Elbow1.Size:1/4"-48" 2.Type:carbonsteel ... ,Electrical Factory,Building ConstructionStandardANSI, JIS,DIN,GB,BSThicknesssch5s-xxsQualityFirst Grade 90 Degree SquareTube Elbow