Following are the basic bottle parts:
Finish. This is the very top section of bottle and it is made to seal with a cap. This is the part where the contents are filled or removed. The top surface is specially named as the sealing surface. The finish should be inspected thoroughly for cracks.
Neck. This is the section from the ring seam down to where the form curve makes a wide bend at the base of neck.
Shoulder. Section that widens out up to the straight form of the body.
Body. The largest part. Section where the contents go in. Product label should be placed in this part.
Bottom. The flat section that enable it to stand upright. The curve part down from the bottom plate seam to where the flat bottom starts is specially named heal.