data:extend(
{
  {
    type = "item-group",
    name = "dytech-metallurgy-1",
    order = "z-8-dytech-metallurgy-1",
	inventory_order = "z-8-dytech-metallurgy-1",
    icon = "__MAIN-DyTech-Metallurgy__/graphics/item-group/metallurgy.png",
  },
  {
    type = "item-subgroup",
    name = "dytech-metallurgy-ores",
    group = "dytech-metallurgy-1",
    order = "01"
  },
  {
    type = "item-subgroup",
    name = "dytech-metallurgy-raw-ores-smelting",
    group = "dytech-metallurgy-1",
    order = "02a"
  },
  {
    type = "item-subgroup",
    name = "dytech-metallurgy-raw-ores-processing",
    group = "dytech-metallurgy-1",
    order = "02b"
  },
  {
    type = "item-subgroup",
    name = "dytech-metallurgy-ores-clean",
    group = "dytech-metallurgy-1",
    order = "03"
  },
  {
    type = "item-subgroup",
    name = "dytech-metallurgy-plates-early",
    group = "dytech-metallurgy-1",
    order = "04"
  },
  {
    type = "item-subgroup",
    name = "dytech-metallurgy-plates-mid",
    group = "dytech-metallurgy-1",
    order = "05"
  },
  {
    type = "item-subgroup",
    name = "dytech-metallurgy-plates-end",
    group = "dytech-metallurgy-1",
    order = "06"
  },
  {
    type = "item-subgroup",
    name = "dytech-metallurgy-alloys",
    group = "dytech-metallurgy-1",
    order = "07"
  },
  {
    type = "item-subgroup",
    name = "dytech-metallurgy-alloys-recipes",
    group = "dytech-metallurgy-1",
    order = "08"
  },
}
)