various purity via high productivity indirect method and direct method zinc oxide ... strong competitive power to provide you various purity via high productivity, both direct and indirect processing method in general ... controlling 3 factories which famous in Guangxi province, China.Min. order quantity: 22MT for 20'FCL;Packaging: 25kg/ ... grade80%,85%,90%,92%,95%,96%, 97%,98%,99%,99.5%, 99.7%, 99.8%, 99.9%