How are the stainless steel grommets produced?

We have a stainless steel product line in our factory.
We have products such as stainless steel magnetic bracelet clip, stainless steel grommets and stainless steel rings.

The video below was recorded in our factory:

How are the  stainless steel grommets produced?-NIKKA | Dog Hooks, Swivel Snaps, Rings, Turn Locks, Belt Buckles, Bottom Studs, Logos, Cord Stoppers, Bag Feet, Ornaments, Handbag Frames, haberdashery, metal fittings for leather goods,leather goods metal,leather goods metal accessories