Intravenous infusions, chemotherapy, blood, enteral nutrition, stoma and urology, laparoscopy, enemas, fluid filtration bags are manufactured with RF sealing. In addition, this process involves blood pressure cuffs, hot compresses, cold compresses, compression leg sleeves, aerial broadcasts, body bags, wheelchair blocks, fixing pillows, breathing bags, implants, vein arm plates, stretchers, centrifuges, sterilization. Used in manufacturing are indicators, tourniquets, catheters, liquid pump cartridges and other disposable devices. These products are widespread and diverse, but the techniques for sealing them are essentially the same.