42743 ⎘
Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work Sealing small holes in metal containers, e.g. tins
Piston with cooling gallery and closed collar chamber
#2Process of filling openings in a component
#3Workpiece with a recess which is closed from the exterior by means of a solder film and method for closing a recess by means of a solder film
#4Hard disk drive sealed in helium using a secondary container