data:extend(
{
  {
    type = "item",
    name = "obsidian-wall",
    icon = "__MAIN-DyTech-Machine__/graphics/walls/obsidian-wall.png",
    flags = {"goes-to-quickbar"},
    subgroup = "dytech-combat-walls",
    order = "i[obsidian-wall]",
    place_result = "obsidian-wall",
    stack_size = 50
  },
  {
    type = "item",
    name = "brick-wall",
    icon = "__MAIN-DyTech-Machine__/graphics/walls/brick-wall.png",
    flags = {"goes-to-quickbar"},
    subgroup = "dytech-combat-walls",
    order = "f[brick-wall]",
    place_result = "brick-wall",
    stack_size = 50
  },
  {
    type = "item",
    name = "iron-wall",
    icon = "__MAIN-DyTech-Machine__/graphics/walls/iron-wall.png",
    flags = {"goes-to-quickbar"},
    subgroup = "dytech-combat-walls",
    order = "c[iron-wall]",
    place_result = "iron-wall",
    stack_size = 50
  },
  {
    type = "item",
    name = "copper-wall",
    icon = "__MAIN-DyTech-Machine__/graphics/walls/copper-wall.png",
    flags = {"goes-to-quickbar"},
    subgroup = "dytech-combat-walls",
    order = "d[copper-wall]",
    place_result = "copper-wall",
    stack_size = 50
  },
  {
    type = "item",
    name = "steel-wall",
    icon = "__MAIN-DyTech-Machine__/graphics/walls/steel-wall.png",
    flags = {"goes-to-quickbar"},
    subgroup = "dytech-combat-walls",
    order = "e[steel-wall]",
    place_result = "steel-wall",
    stack_size = 50
  },
}
)