Product Name: Carbon Steel Blind Flange
Type: Blind Flange
Design Standard: ASME B16.5
Material: ASTM A105, Forged Carbon Steel
Size: 12 Inch, DN300
Pressure Rating: Class 150 LB, PN20
Sealing Facing: Raised Face
Surface Coating: Black Painting

Source: https://www.landeeflange.com/carbon-steel-blind-flange-a105-12-inch-cl150-raised-face.html