… They are usually pressed into final shape after rolling, but they may also be assembled by welding or riveting … rail and the longest side, with its end slightly flattened but not pointed, being fixed in a hole previously drilled in …
… of felt or nonwovens or of articles of felt or nonwovens, but excluding those for the manufacture of felted woven … certain types of these machines the plates are replaced by fluted rollers. (2) Soaping machines to soap the partially … conical rollers. (6) Polishing machines , which remove outstanding hairs from the surface by means of pumice stone …