Polyvinyl Alcohol,pva polyvinyl alcohol Grades: 1799,2299,2499,2699 hydrolysis : 99% min viscosity:20-60cps Polyvinyl Alcohol,pva polyvinyl alcohol Application:Fiber processingTextile SizeAdesive ProcessingArchitectural CoatingEmulsification Stabilizer and DispersantAcetal Derivatives Producing Grades: 1799,2299,2499,2699: hydrolysis : 99% min, viscosity:20-60cps1788,2288,2488,2688:hydrolysis : ...