unit_cannon_build_arm
{ "base_spec": "/pa/tools/factory_build_arm/factory_build_arm.json", "construction_demand": { "energy": 2250, "metal": 45 } }
{ "base_spec": "/pa/tools/factory_build_arm/factory_build_arm.json", "construction_demand": { "energy": 2250, "metal": 45 } }