How about the medical top bag of Nantong Hua Fu Medical Packaging Co., Ltd.

Nantong Hua Fu Medical Packaging Co., Ltd. is an earlier enterprise in China that produces medical stoppers for sterilization and packaging of medical devices.

The medical plug bag is a plastic bag with Tyvek dialysis window. The main function is to install heavy medical equipment, but it can also be sterilized with EO ethylene oxide. The above information comes from/question/294808997.html.