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|Source Mod||Thermal Expansion, GregTech|
The Invar Ingot is a metal ingot added by Thermal Expansion and GregTech. It can be used in place of Refined Iron to make Mixed Metal Ingots, doubling the output and conserving Bronze/Brass and Tin, and is most efficient when using a Pulverizer to process Iron as it produces Pulverized Ferrous Metal as a secondary product.