Material: DIN EN 12164 CuZn40Mn1Pb1AlFeSn (CW721R) Description: Standard Specification for Copper and Copper Alloy Rod for Free Machining Purpose Group Name: Non Ferrous Copper Alloys Sub Group: DIN EN 12164 CuZn40Mn1Pb1AlFeSn Copper and Copper Alloy Rod for Free Machining Purpose Application: Intended for Valve, Pump, General Engineering, Automotive and Other Industries Standard: DIN-GERMANY