... suitable for automatic addition and production.1. Advantages of (W/W) PAM emulsion over solid products: better solubility, higher efficiency ... pollution and realization of automatic addition;2. Advantages of (W/W) PAM emulsion over other colloid products: better solubility, ... realization of automatic addition;3. Advantages of (W/W) PAM emulsion over (W/O) PAM emulsion: no oil components and surfactants, ...