testing bottle lid deformation and do you have any gaskets, using 2 million SONY cameras take photograph, is the camera take pictures illustrated below:
Graph one for the standard bottle lid
Figure 2 without gasket bottle lid
Figure 3 is the cover serious deformation of the picture
Figure 4 is the cover part of the sag picture
Figure 5 is the lid slightly deformed picture
Interested in can leave a message oh is discussed in this paper