Product Name: Ductile Iron Wafer Butterfly Valves
Type: Wafer Butterfly Valve
Size: DN150, 150 mm, 6 Inch
End Connection: PN10 / PN16, Class 150 LB
Body Material: Ductile Iron
Disc Material: ASTM A351 CF8M
Shaft Material: SS 420
Seat Material: EPDM / NBR / Viton
Operator: Malleable Handle, Lever

Source: https://www.landee.cn/ductile-iron-wafer-butterfly-valves-dn150-pn10-pn16-lever.html