Product Name: ASME B16.5 Grooved Flange
Design Standard: ASME B16.5
Material: ASTM A182 F304, Stainless Steel
Size: 6 Inch, DN150, 150 mm
Pressure: Class 150 LB, PN20
Source: https://www.landeeflange.com/stainless-steel-grooved-flange-asme-b16-5-f304-6-in-cl150.html