NEW ACRYLAMIDO DERIVATIVES AND NEW FORMULATIONS FOR POLYACRYLAMIDE MATRICES IN ELECTROPHORETIC AND CHROMATOGRAPHIC TECHNIQUES

摘要

process for closing one end of a metallic tube.including the stage of applying a substantially radial force over the outer surface of the tube (10) in the vicinity of the end (12) to close.the area of application of force is continuously moved with respect to the tube (10) both in the circumferential and radially.in order to produce a progressive deformation of the side wall of the tube (10) to the inside, to achieve complete closure of the ends (12).