Product Item: Quick Opening Closure with Sectors
Type: Quick Opening Closure
Hub Material: ASTM A105N
Cap Material: ASTM A516 Grade 70
Size: 20 Inch
Pressure Rating: 3.2 MPa
Suitable Temperature: -20°C to 120°C
Surface Treatment: White Epoxy Coating

Source: https://www.landee.cn/quick-opening-closure-with-sectors-20-in-a516-gr-70-a105n.html