Product Name: ASTM A182 F316L Slip-On Flanges
Design Standard: ANSI B16.5
Material: ASTM A182 F316L
Size: 3 Inch
Pressure: Class 150 LB
Sealing Face: Raised Face (RF)

Source: https://www.landee.cn/astm-a182-f316l-slip-on-flanges-ansi-b16-5-3-in-cl150-rf.html