DUCT-BE-SEALED

SEALING MATERIALS, NAMELY, A SEALING SYSTEM CONSISTING OF RUBBER, PLASTIC, METAL OR OTHER SUITABLE MATERIAL THAT IS INSERTED INTO A PIPE, TUBE OR CYLINDER CONTAINING WIRES, CABLES, AND OTHER ENVIRONMENTALLY-SENSITIVE ITEMS, FOR THE PURPOSE OF EXPANDING WITHIN THE CYLINDER AND PREVENTING ENTRY OF WATER, ANIMALS OR OTHER EXTERNAL OBJECTS THAT COULD HARM THE CONTENTS OF THOSE CONDUITS