Product Name: Carbon Steel Concentric Reducers
Type: Concentric Reducer
Design Standard: ASME B16.9
Material: ASTM A234 WPB, Carbon Steel
Size: 6 Inch * 4 Inch, DN150*DN100
Wall Thickness: SCH STD
End Connection: Butt Welded
Surface Treatment: Black Painting
Source: https://www.landeepipefitting.com/carbon-steel-concentric-reducers-a234-wpb-6-4-in-sch-std.html