◆ Through the way of water pressure to open the stomach or scale to open the back of a one-time completion, the removal of more than 98%of the scale, do not hurt the skin, do not hurt the fins.
◆ Depending on the fish, the speed can be adjusted.
◆ Apply to fresh fish and thawed fish can, such as: grass carp, black fish, bass, silver carp, yellow croaker and so on.