... %,96%, 97%,98%,99%,99.5%, 99.7%, 99.8% to 99.9% industrial and feed grade various purity via high productivitydirect and ... indirect method both availableindustrial and feed gradeIndustrial 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 ...