Getting generated MetaItem's as an IItemStack

src/main/java/gregtech/api/items/materialitem/MaterialMetaItem.java

@@ -32,6 +32,7 @@ public class MaterialMetaItem extends StandardMetaItem {
 
     protected OrePrefix[] orePrefixes;
     private ArrayList<Short> generatedItems = new ArrayList<>();
+    private ArrayList<ItemStack> items = new ArrayList<>();
 
     public MaterialMetaItem(OrePrefix... orePrefixes) {
         super((short) (1000 * orePrefixes.length));
@@ -53,10 +54,16 @@ public void registerOreDict() {
         for (short metaItem : generatedItems) {
             OrePrefix prefix = this.orePrefixes[metaItem / 1000];
             Material material = Material.MATERIAL_REGISTRY.getObjectById(metaItem % 1000);
-            OreDictUnifier.registerOre(new ItemStack(this, 1, metaItem), prefix, material);
+            ItemStack item = new ItemStack(this, 1, metaItem);
+            OreDictUnifier.registerOre(item, prefix, material);
+            items.add(item);
         }
     }
 
+    public List<ItemStack> getEntries() {
+        return items;
+    }
+
     @Override
     @SideOnly(Side.CLIENT)
     public void registerModels() {

src/main/java/gregtech/api/recipes/crafttweaker/MetaItemBracketHandler.java

@@ -6,34 +6,57 @@
 import crafttweaker.api.item.IItemStack;
 import crafttweaker.mc1120.item.MCItemStack;
 import crafttweaker.zenscript.IBracketHandler;
+import gregtech.api.items.materialitem.MaterialMetaItem;
 import gregtech.api.items.metaitem.MetaItem;
 import gregtech.api.items.metaitem.MetaItem.MetaValueItem;
+import gregtech.api.unification.OreDictUnifier;
+import net.minecraft.item.ItemStack;
 import stanhebben.zenscript.compiler.IEnvironmentGlobal;
 import stanhebben.zenscript.expression.ExpressionCallStatic;
 import stanhebben.zenscript.expression.ExpressionString;
 import stanhebben.zenscript.parser.Token;
 import stanhebben.zenscript.symbols.IZenSymbol;
 import stanhebben.zenscript.type.natives.IJavaMethod;
 
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 @BracketHandler
 @ZenRegister
 public class MetaItemBracketHandler implements IBracketHandler {
+    private static final Map<String, ItemStack> metaItemNames = new HashMap<>();
 
     private final IJavaMethod method;
 
     public MetaItemBracketHandler() {
         this.method = CraftTweakerAPI.getJavaMethod(MetaItemBracketHandler.class, "getMetaItem", String.class);
     }
 
+    @SuppressWarnings("unchecked")
+    public static void rebuildComponentRegistry() {
+        metaItemNames.clear();
+        for (MetaItem<?> item : MetaItem.getMetaItems()) {
+            if (item instanceof MaterialMetaItem) {
+                for(ItemStack entry : ((MaterialMetaItem) item).getEntries()) {
+                    metaItemNames.put(OreDictUnifier.getPrefix(entry).name() + OreDictUnifier.getMaterial(entry).material.toCamelCaseString(), entry);
+                }
+            }
+            for(MetaValueItem entry : item.getAllItems()) {
+                if (!entry.unlocalizedName.equals("meta_item")) {
+                    metaItemNames.put(entry.unlocalizedName, entry.getStackForm());
+                }
+            }
+        }
+    }
+
     public static IItemStack getMetaItem(String name) {
-        MetaValueItem targetItem = MetaItem.getMetaItems().stream()
-            .flatMap(item -> item.getAllItems().stream())
-            .map(item -> (MetaValueItem) item)
-            .filter(item -> item.unlocalizedName.equals(name))
-            .findFirst().orElse(null);
-        return targetItem == null ? null : new MCItemStack(targetItem.getStackForm());
+        ItemStack item = metaItemNames.get(name);
+        if(item != null) {
+            return new MCItemStack(item);
+        } else {
+            return null;
+        }
     }
 
     @Override

src/main/java/gregtech/common/CommonProxy.java

@@ -4,6 +4,7 @@
 import gregtech.api.block.machines.MachineItemBlock;
 import gregtech.api.enchants.EnchantmentEnderDamage;
 import gregtech.api.items.metaitem.MetaItem;
+import gregtech.api.recipes.crafttweaker.MetaItemBracketHandler;
 import gregtech.api.unification.material.type.DustMaterial;
 import gregtech.api.unification.material.type.Material;
 import gregtech.api.unification.ore.OrePrefix;
@@ -173,6 +174,7 @@ public static void registerRecipesLowest(RegistryEvent.Register<IRecipe> event)
         DecompositionRecipeHandler.runRecipeGeneration();
         RecyclingRecipes.init();
         WoodMachineRecipes.init();
+        MetaItemBracketHandler.rebuildComponentRegistry();
     }
 
     @SubscribeEvent