Method for the attachment of tubular pipe connection means to a sheet metal Wall and a device according to the method

摘要: The attachment of a tubular pipe connection means to the wall storage tank similar structure in which an end portion attachable is provided with inwardly inclined conical collar having at its free outwardly directed flange. A bar conically-shaped being insertable into so that thereof contacts inside hole piercing member attached contact flange means. arrangement such when together are moved axially through tank, and flange, via conically shaped bar, pressed caused bend grip edge formed by member.