If you don't know where to find it, I'll tell you several ways to find a packaging bag supplier:

1. The most common food bags, in places like vegetable markets, generally have wholesalers. If not, ask the vegetable sellers one by one.

2. If you need something particularly exquisite, look for an advertising company. Many advertising companies do packaging design and production.

The simplest thing is that in a treasure, there is nothing you can't find, only something you can't think of. A treasure directly searched the packaging bag, and many merchants came out.