buildings = {
	
	industrial_expansion = {
		base_cost = 2000
		per_level_extra_cost = 500
		icon_frame = 28
		value = 1
		infrastructure_construction_effect = yes
		show_modifier = yes
		
		state_modifiers = {
			local_building_slots = 2
		}

		level_cap = {
			state_max = 20
		}
	}
	
	resource_expansion_steel = {
		base_cost = 4000
		icon_frame = 29
		value = 1
		infrastructure_construction_effect = yes
		refinery = yes
		show_modifier = yes
		
		local_resources_steel = 4

		level_cap = {
			shares_slots = yes
			state_max = 20
			group_by = extractors
		}
	}
	
	resource_expansion_aluminium = {
		base_cost = 5000
		icon_frame = 30
		value = 1
		infrastructure_construction_effect = yes
		refinery = yes
		show_modifier = yes
		
		local_resources_aluminium = 4

		level_cap = {
			shares_slots = yes
			state_max = 20
			group_by = extractors
		}
	}
	
	resource_expansion_tungsten = {
		base_cost = 6500
		icon_frame = 31
		value = 1
		infrastructure_construction_effect = yes
		refinery = yes
		show_modifier = yes
		
		local_resources_tungsten = 4

		level_cap = {
			shares_slots = yes
			state_max = 20
			group_by = extractors
		}
	}
	
	resource_expansion_chromium = {
		base_cost = 8000
		icon_frame = 32
		value = 1
		infrastructure_construction_effect = yes
		refinery = yes
		show_modifier = yes
		
		local_resources_chromium = 4

		level_cap = {
			shares_slots = yes
			state_max = 20
			group_by = extractors
		}
	}
}