US Trademark Classification US01 Chemicals 水镁矾（001-925） Class 01 Kieserite 001-925 水镁矾 Chinese 水镁矾 English Kieserite Spanish Kieserita Term ID 001-925 Class 01 Type Goods Status Active · added, not since modified (A) Effective date 2004-07-20 Version 08-2002