Sodium Metabisulphite 65% min.Our own Brand is Yirun Brand.Tech and Food grade 3000MT Per Month.

SPECIFICATION	INDUSTRIAL GRADE	FOOD GRADE
Content(as SO2) %≥	65	65
Water-insoluble Matter, % ≤	0.05	0.05
Iron(Fe), % ≤	0.003	0.003
PH	4.0-4.6	4.0-4.6
Arsenic (As), % ≤		0.0002
Lead (Pb), % ≤		0.002

We are the Agent of Yun Feng Brand.