... the solution is acidic.Usages: Fiber, photo ,pharmacy,chemical ,petroleum chemical and so on. Packing: 25kg PE bag or 1000kg/bag Product ... the solution is acidic.Usages: Fiber, photo ,pharmacy,chemical ,petroleum chemical and so on. Packing: 25kg PE bag or 1000kg/bag ... the solution is acidic.Usages: Fiber, photo ,pharmacy,chemical ,petroleum chemical and so on. Packing: 25kg PE bag or 1000kg/bag ...