Section 05 MINERAL PRODUCTS 27 Mineral fuels, mineral oils and products of their distillation; bitumi nous subs 27 10 Petroleum oils and oils obtained from bituminous minerals, other than crude; pre 27 10 19 Transformer and heat transformer oils 27 10 19 60 Transformer and heat transformer oils Commodity Code Description 27 10 19 60 00 Transformer and heat transformer oils