US Trademark Classification US01 Chemicals 管道助焊剂（001-1358） Class 01 管道助焊剂 001-1358 Chinese 管道助焊剂 English Plumbing flux Spanish Flujo de plomería Term ID 001-1358 Class 01 Type Goods Status Active · added, not since modified (A) Effective date 2010-05-20 Version 09-2007