Bottle Caps
The plastic caps used to open and close the pet bottles are made of polyethylene materials
These plastic caps are divided in two groups of short-neck caps and standard caps
There is another division to this group: water caps and cabonated drink caps
Short-neck caps weigh less and are used for both carbonated drinks and mineral water:
There are various sizes for plastic caps
28 mm caps with liner weighing 3.2 grams
28 mm caps for carbonated drinks weighing 3.6 grams
28 mm water caps weighing 2.5 grams
30 mm caps weighing 1.85 grams
short-neck caps weighing 1.34 grams
38 mm caps weighing 3 grams
28 mm non-alcoholic beer caps weighing 2.89 grams