48 of a die 50 to form the hollow portion 34 of the conduit 10 a mandrel 52 may be placed in the center of the die opening 48 after extruding the feedstock through the die 50 and mandrel 52 the extruded feedstock 54 may have a tube configuration without any corrugations spiral corrugations or reliefs 22 a b thereafter the extruded feedstock 54 may be placed in a molding machine 56 the molding machine 56 may have an outer mold 58 and an inner mold 60 the inner and outer molds 60 58 may have corresponding peeks and valleys that form the corrugated configuration of the cover portion 20 of the flexible conduit 10 moreover as discussed above the flexible conduit 10 may have a generally flat attachment portion 18 the inner and outer molds 60 58 of the molding machine 56 may have corresponding generally flat surfaces that match the generally flat attachment portion 18 after the extruded feedstock 54 has been processed through the molding machine 56 the molded feedstock may have a cover portion 20 that is corrugated also the attachment portion 18 may be generally flat thereafter the molded feedstock may be cut with a knife 62 to form the.