1, To reproduce by photoengraving; make a photoengraving of.

2, Serveral of commonly used methods are photoprinting, photoengraving , mechnical engraving, and stencil.

3, APPLICATION: Suitable for sterilization, photoengraving, water treatment, medical treatment and breeding.

4, An exceptionally clear adhesive can be made from fish and was the first adhesive used for photographic emulsions for photo film and photo resist coatings for photoengraving processes.

5, It attacks most metals and is used for etching steel and photoengraving.

6, A strong acid, it is toxic and can cause severe Burns. It attacks most metals and is used for etching steel and photoengraving.