Underwater pen and its manufacturing method

摘要

The invention relates to an underwater propeller installed in water and a manufacturing method thereof. It can provide the same hardness as the target object (especially "submarine", etc.) and prevent the damage of the target object to the greatest extent. The utility model relates to an underwater pen which can replace damaged and corroded low hardness engraving glue, so as to reduce cost and easy maintenance and a manufacturing method thereof.The invention relates to a product that can utilize or recycle the existing air pen. Because the low hardness sheet rubber is attached at a certain interval, the damage degree of different parts is different, so it can only be repaired and reused where the low hardness sheet is damaged, thus reducing the maintenance cost.In addition, the invention can also select the hardness suitable for the target object to attach the sheet rubber, so it can be reprocessed with low hardness or high hardness according to the target object, so as to deal with it immediately and minimize the damage of the target object.