HS 27 - Mineral fuels, mineral oils and products of their distillation; bituminous substances; mineral waxes
HS 84 - Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
HS 39 - Plastics and articles thereof
HS 29 - Organic chemicals
HS 86 - Railway, tramway locomotives, rolling-stock and parts thereof; railway or tramway track fixtures and fittings and parts thereof; mechanical (including electro-mechanical) traffic signalling equipment of all kinds
Puerto Rico
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