... and direct method zinc oxide industrial and feed grade indirect method and direct method zinc oxidewe are ... , both direct and indirect processing method in general grade, Ceramic grade and enamel . We can produce 150mts/15 days ... controlling 3 factories which famous in Guangxi province, China.Min. order quantity: 22MT for 20'FCL;Packaging: ... 85%,90%,92%,95%,96%, 97%,98%,99%,99.5%, 99.7%, 99.8%, 99.9%