DNV grade FH40 steel density

We are DNV Grade FH40 and NV/F40 Steel plate supplier   Gangsteel export DNV Grade FH40 and NV/F40 steel plate. DNV FH40 is Higher-strength DNV shipbuilding steel Grade. NV/FH40 shipbuilding steel equal grade   Keywords: DNV/FH40 Steel plate, DNV Grade