... to 99.9% industrial and feed grade various purity via high productivitydirect and indirect method both availableindustrial and feed grade Industrial grade:80%,85%,90%,92%,95 ... %,96%, 97%,98%,99%,99.5%, 99.7%, 99.8%, 99.9%Feed grade: ... 72%, 75%,78.6% Min. order quantity: 22MT for 20'FCL;Packaging: 25kg/bag or ...