return {
    -- pipes
    'pipe',
    'pipe-to-ground',
    -- belts
    'transport-belt',
    'fast-transport-belt',
    'express-transport-belt',
    -- undergrounds
    'underground-belt',
    'fast-underground-belt',
    'express-underground-belt',
    -- poles
    'small-electric-pole',
    'medium-electric-pole',
    'big-electric-pole',
    'substation',
    -- drills
    'electric-mining-drill',
    'electric-mining-drill-2',
    'electric-mining-drill-3',
    'burner-mining-drill',
    'pumpjack',
    -- vehicles
    'car',
    'tank',
    'spidertron',
    -- rails
    'straight-rail',
    'curved-rail',
    'curved-rail-a',
    'curved-rail-b',
    'half-diagonal-rail',
    'legacy-straight-rail',
    'legacy-curved-rail',
    'rail-signal',
    'rail-chain-signal',
    'train-stop',
    'locomotive',
    'cargo-wagon',
    'fluid-wagon',
    'artillery-wagon',
}