We  hope you have a good day and we also hope we will have a win-win cooperation. We are a leading chemical manufacture in china. We could supply more than 30 kinds chemical products. For example

NAME   SODIUM METABISULPHITE64%TECH GRADE

spc:

Assay %≥  64.0

FE %≤  0.005

WATER-INSOLUBLE MATTER % ≤  0.05