EU Trademark Classification EU04 Industrial oils, greases and fuels Oils for use as additives to heating oils Class 04 Oils for use as additives to heating oils 8791 用作取暖油添加剂的油 Chinese 用作取暖油添加剂的油 English Oils for use as additives to heating oils Site ref. 8791 Class 04 Included in Harmonised Database (HDB)