Material: IS 2378 G K Cu Sn Pb 4 Zn 5 Pb2 Description: Standard Specification for Code for Designation of Copper and Copper Alloys Group Name: Non-Ferrous Copper Alloy Sub Group: IS 2378 Code for Designation of Copper and Copper Alloys Application: Intended for Valve, Pump, General Engineering, Automotive and Other Industries Grade Standard: IS-INDIA