Material: AFNOR NF Z 4 CN 13.4 M Description: Standard Specification for Steel Castings for General Engineering Purposes Group Name: Ferrous Stainless Steel Alloys Sub Group: AFNOR NF Z 4 CN 13.4 M Steel Castings for General Engineering Purposes Application: Intended for Valve, Pump, General Engineering, Automotive and Other Industries Standard: AFNOR-FRANCE