1. The specifications and sizes fit
The requirements of tinplate bottle caps in quality inspection, the first thing that will be concerned is its qualification in terms of specifications and sizes, and meet the requirements of the bottle on the bottle cap in terms of specifications and sizes, to ensure that it can be installed on the bottle, in order to be considered qualified, but this step is often relatively simple, and it can often be seen at a glance.
2. Tightness guarantee
In addition to the requirement that the tinplate bottle cap can fit in terms of specifications and sizes, it is also required to ensure the tightness, which is necessary, after installing the bottle, inverting the bottle, the medium stored in the bottle has no leakage, so that the cap can be shipped to ensure the sealing.
3. Hygienic guarantee
The guarantee of hygienity of the tinplate bottle cap has always been recognized by the user, and the requirements for factory quality inspection are its requirements in hygiene, check whether there is dirt on the bottle cap, if it exists, it needs to be picked out in time, cleaned and disinfected to ensure the safety of subsequent storage.
