packing:25kg net, plastic woven bag lined with plastic bag. Appearance:mainbody white, allowing slight yellow, gloss. Application:mainly used in synthetic fiber, papermaking, organic synthesis, textile, artificial silks, pharmacy and metallurgy. Package:solid sodium hydroxide by ion membrance process, net 250kg per iron drum. flaky sodium hydroxide by ion membrance process, net 25kg per bag of two plastic woven bags lined with PE bag.