Product Item: ASTM A217 WC6 Gate Valves, OS&Y, BB
Standard: API 600
Size: 2 Inch (DN50)
Pressure: Class 600 LB
Body Material: ASTM A217 WC6
Bonnet Material: ASTM A217 WC6 + 13Cr
Wedge Material: ASTM A217 WC6 + 13Cr
Seat Material: INT + STL6
End Connection: BW, SCH 80
Source: https://www.landee.cn/astm-a217-wc6-gate-valves-api-600-2-inch-600-lb-os-y-bw.html