Delete the words "- products of glass wool for heat-insulating" so that it reads "This class includes manufacture of :
- asbestos yarn and fabric, and articles of asbestos yarn....paper or felt,
- friction material with a base......,
- mineral insulating materials: slag wool,.......or sound absorbing materials.,
- articles of asphalt or of similar materials, e.g. coal tar pitch.
- .....,
- articles of other mineral substances .....of other mineral materials.
Reason:
This is a correction.