US Trademark Classification US21 Household and kitchen utensils 钢丝绒（021-1197） Class 21 Steelwool 021-1197 钢丝绒 Chinese 钢丝绒 English Steelwool Spanish Estropajo Term ID 021-1197 Class 21 Type Goods Status Active · added, not since modified (A) Effective date 2007-11-15 Version 09-2007