- Samirian Chemical
- ulfamic acid,oxalic acid,sodium thiosulfate,sodium metabisulfite,sodium metasilicate,sodium hydroxide,sodium percarbonate,dicyandiamide.
- Address:1999 S. Bascom Ave, #515, Campbell, California, USA
- Brenda Co., Ltd.
- Dicyandiamide, Beta Naphthol, Microsilica, Sodium Bicarbonate.
- Address:422 Sherwood St.
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