... 17-99F(H), 17-99 (L), 17-99(H), 18-99(L), 18-99(H), 19-99(L), 22-99(L), 19-88, and ... our customers. Besides, PVA powder with mesh numbers 20-60 can also be provided.The PVA production facilities ... ALKALI PVA ITEMhydrolysis,% ≥viscosity,mPa·sSodiumacetate,% ≤volatile,% ≤ash,% ≤purity,%≥17-99L99.522312.17.00.890.01899L99.232~402.17 ... .17.00.822-99L99.251562.17.00.82499L≥99.2>562.17.00.8178886.0~89.020. ...