US Trademark Classification US06 Metal goods 铅矿石（006-573） Class 06 Lead ores 006-573 铅矿石 Chinese 铅矿石 English Lead ores Spanish Minerales de plomo Term ID 006-573 Class 06 Type Goods Status Active · added, not since modified (A) Effective date 2004-07-20 Version 08-2002