Minecraft 1.19.2
forge-1.19.2-43.1.47-installer.jar
silent-lib-1.19.2-7.0.3.jar
silent-gear-1.19.2-3.0.5.jar

Some similar items for example Iron Ingots does not stacked with each other because different "Serial". I am not sure but probably those ingots was re-crafted from 8 fragments from Salvager.