Pumps, tubes, valves, bags, containers, catheters and accessories for enteral feeding; containers of plastic in the form of sleeves, pouches and films for foods for tube-feeding for medical purposes namely for feeding with the aid of nasoenteric tubes or with the aid of percutaneous endoscopic gastronomy (PEG); plastics in extruded form for use in manufacture, flexible pipes (not of metal), all the aforesaid goods for foods for tube-feeding for medical purposes, namely for feeding with the aid of nasoenteric tubes or with the aid of percutaneous endoscopic gastronomy (PEG)