When looking for a competent source for shrink wraps, one must first define what type material is being used, or being considered for use. This is because there are 2 types of shrink films, industrial and retail-display shrink films.
Industrial shrink films are, essentially, a replacement for corrugated cartons, and are used to unitize a given number of individual packages, one example being a case of 24 cans of soda. Industrial wraps are, almost always, heavier gauge polyethylene films.
The primary advantage of using polyethylene shrink films in order to unitize a product is cost. It is cheaper, per case, to use a polyethylene shrink-wrap than to use a corrugated box. It is also more cost-effective to only inventory a pallet of polyethylene film, and not a truckload of boxes, for unitizing the same given number of packages. In addition, the individual packages, being unitized, can be easily viewed in the case, when using the transparent polyethylene wrap. You can also visit some various reputed website online at https://www.longislandhelpfulservices.com/shrink-wrapping/ and from various other reputed websites.
Polyethylene shrink films are available both directly from manufacturers, or from industrial packaging distributors. Because polyethylene film is not a high-tech product to manufacture, and is relatively inexpensive, there are many dozens of manufacturers in the USA, alone, with hundreds of manufacturers, globally. Thus, offering the consumer a very wide range of supplier choices.
One, however, should NOT choose a supplier based on the lowest cost per lb. Rather, one should look for a manufacturer that can offer the thinnest film with the best shrink and strength properties. This will provide the most competitive cost per case packaged. In addition, one should seek a source with the best service, providing the quickest turn-around time as well as after-sale support.