8421999092
- Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases
- Parts
- Other
- Other
- Parts of equipment for the purification of water by reverse osmosis, consisting essentially of plastic-based membranes, supported internally by woven or non-woven textile materials which are wound round a perforated tube, and enclosed in a cylindrical plastic casing of a wall-thickness of not more than 4 mm, whether or not housed in a cylinder of a wall-thickness of 5 mm or more