This kind of pattern can generally be felt based on contact. Staying pattern: During the whole process of glass bottle and can inspection, sometimes you can 

see clearly visible water ripples on the cross-section formed by cracks in laminated glass. It is a deep imprint mark that shows the start and end cracks, or a 

deeper imprint mark at the beginning of an impact crack. This kind of crack impression can also be relatively shallow, and the crack source can generally be

 traced.

Sawtooth pattern: It is formed by the excessive kinetic energy that needs to be formed when the crack accelerates the development trend, which produces 

the edge of the mirror glass of the crack source. 

The fine zigzag pattern is a dark gray, misty area tightly coiled around the crack source mirror glass. The non-lubricated jagged pattern is a radial area of 

particles spreading over the surface of the fine jagged pattern.

The zigzag pattern is formed on the surface that bears the supporting force, but it is not easy to broaden the appearance of the laminated glass that tends 

to be relative. The general display information shows that the bending stress produced on the reverse side due to the appearance design plan, the coverage 

of the laminated glass, the thickness of the glass, etc. can be used to distinguish and accurately measure the size of the ground stress at the time of cracking. 

Professional manufacturer of glass bottles.