.Bubble alumina is a hollow spherulitic heat-insulating material,which made by electro-melted method.2.It noted for its light-weight,heat-resistance,close pore.3.It an ideal filler high-temperature furnaces and excellent aggregate of light weight ...

Lignin is a naturally occurring polymer that holds the cellulose fibers together in wood and other plant material. Since it resourceful, non-poisonous rich active groups, lignin have been widely used many fields, such as construction, chemical ...