EU Trademark Classification EU04 Industrial oils, greases and fuels Crude oil products derived from the refining of crude Class 04 Crude oil products derived from the refining of crude 8538 原油精炼所得的原油产品 Chinese 原油精炼所得的原油产品 English Crude oil products derived from the refining of crude Site ref. 8538 Class 04 Included in Harmonised Database (HDB)