It is mining a special formula specifically designed for ceramic bearings , with strong abrasion and corrosion resistance , it can be advanced and reliable safety performance guarantee . Circulating pump with magnetic dri......It is mining a special formula specifically designed for ceramic bearings , with strong abrasion and corrosion resistance , it can be advanced and reliable safety performance guarantee . Circulating pump with magnetic drive sealless design , completely avoid the erosion of traditional mechanical pump seal leak caused by the presence of liquid contamination defects, industrial equipment ideal liquid pump.