... industrialized countries such type of pump used to replace part of the centrifugal pump, screw rod pump to used in petrochemical, ceramics ... , outlet pressure ≤ 3kgf/cm2 that occasion.Electric diaphragm pump main purposes: a variety of toxic, flammable, volatile liquid ... pumping pickle jam, mashed potatoes, chocolate and so on. pump paint, rubber, paint binder. axoplasm of porcelain mortar cement ...