EU Trademark Classification EU06 Metal goods 内含助焊剂的钎焊丝（13341） Class 06 内含助焊剂的钎焊丝 13341 Chinese 内含助焊剂的钎焊丝 English Soldering wire with built-in flux Site ref. 13341 Class 06 Included in Harmonised Database (HDB)