Tank polishing machine for different tank vessel,sea head,range from 500mm~4000 mm diameter ,inner and outside polished,60 mesh. As a first manufacturer of tank polishing machine in China ,BOAO has the patent for almost ten years. We are prossional in polishing tanks,vessel,seal head ,range from 500mm~4000 mm diameter ,inner and outside both polished .GP Vessel /tank Polishing Machine Application ...