When combining dusts I think the recipes should be shapeless.
Shapeless:
Code
recipes.addShapeless(<gregtech:gt.metaitem.01:2335>,
[<ore:dustSteel>, <ore:dustCoal>, <ore:dustSilicon>, <ore:dustManganese>, <ore:dustChrome>, <ore:dustMolybdenum>, <ore:dustNickel>, <ore:dustNickel>, <ore:dustNickel>]);
recipes.addShapeless(<gregtech:gt.metaitem.01:2335>,
[<ore:dustSteel>, <ore:dustCoal>, <ore:dustManganese>, <ore:dustManganese>, <ore:dustSilicon>, <ore:dustChrome>, <ore:dustChrome>, <ore:dustVanadium>]);
recipes.addShapeless(<gregtech:gt.metaitem.01:2322>,
[<ore:dustSteel>, <ore:dustCoal>, <ore:dustManganese>, <ore:dustPhosphorite>, <ore:dustSulfur>, <ore:dustSilicon>]);
recipes.addShapeless(<gregtech:gt.metaitem.01:2336>,
[<ore:dustIron>, <ore:dustThaumium>, <ore:dustThaumium>, <ore:dustThaumium>]);
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