Product Name: ASTM A182 F44 WN Flange
Type: Weld Neck (WN) Flange
Standard: ASME B16.5
Material: ASTM A182 F44
Size: 12 Inch, DN300
Pressure: Class 150 LB, PN20
Wall Thickness: SCH 10S
Source: https://www.landee.cn/astm-a182-f44-wn-flange-asme-b16-5-12-inch-cl150-sch-10s.html