When the handwriting punch hits the metal surface, it creates a depression on the metal surface, and also breaks the metal crystal slicing beneath the depression, forming a crystal fracture layer. After the recessed deformation of the stamped handwriting is polished off, the crystal fracture layer may still exist, and the original handwriting can be revealed by treating the crystal fragment layer with a chemical corrosion agent. The method used in the box is to package various corrosive chemicals in an ampere bottle. The ampere bottle is then enclosed in a plastic sleeve. Break the ampere bottle to mix the reagent, cut the plastic tube seal with scissors, the solution flows out of the opening, points on the potential metal handwriting, the potential metal handwriting will appear. Use this box to eliminate the hassle of preparing your solution.
20 Tube steel handwriting appears in the armor
20 Pipe steel handwriting appears ethyl liquid
5 Tube aluminum handwriting appears in the armor
5 Tube aluminum handwriting appears ethyl liquid
5 Tube copper handwriting appears in the armor
5 Pipe copper handwriting appears ethyl liquid
10 Zhang 80 No. sand cloth
10 Zhang 120 No. sand cloth
10 Zhang 150 No. sand cloth
10 Zhang 150 No. sand cloth
1 Block polished felt block
200 A stick
1 Pack of skimmed cotton
1 A towel
1 sweat cloth gloves
1 Put the scissors.
1 Press the crushed pliers
100 Disposable plastic gloves only