Material: MSZ Ao 10 Ni 20 Description: Standard Specification for Steel Castings, Ferritic and Martensitic for Pressure-Containing and Other Applications for Low-Temperature Service Group Name: Ferrous Mild Steel Alloys Sub Group: MSZ Ao 10 Ni 20 Ferritic and Martensitic Steel Castings for Pressure-Containing and Low-Temperature Service Application: Intended for Valve, Pump, General Engineering, Automotive and Other Industries Standard: MS-MALAYSIA