The reason C series collets have smaller range steps is that they are single taper and after a very small adjustment only close further at the front,...
That's the problem with a patent system that doesn't exclude anything which can be show to be prior art, anything which can be shown to be obvious or...
There are machines in lots of place in the UK for doing that with current coinage, because the wording of the law refers to melting down or breaking...
In addition to a few in Steels and Stainless I have MIG wires in Copper, Brass and Bronze, choice of filler is dependent upon materials to be joined...
60% Dry Moly Paste, no issues with differential corrosion if moisture gets involved and Molybdenum Disulphide is a better friction modifier for high...