... packing Iron Oxide, pigment, dyestuff, fibres. Water soluble bag for concrete additivesConcete additive has the nature of alkali, acidity ... Dioxide( Anatase), Chromium Oxide ect.Advantage for using water soluble bag:Using PVA bag for packing, it can measure exactly, avoid ... 75/80Dissolve temp:form 5-85 degree celsious Water soluble bag, packing cement additives. Professional manufacturer of only ...