... operation is simple and stable and its control is simple and convenient and is easy to realize ... . Plastics and resin : AB, ABS emulsion, uric acid resin, phenolic aldehyde resin, urea-formaldehyde resin, formaldehyde resin, polythene, poly-chloroprene and etc. ... Chemical industry :Sodium fluoride (potassium ), alkaline dyestuff and pigment ,dyestuff intermediate, Mn3O4, compound fertilizer ,formic ...