Water purification, treatment and filtration apparatus; desalination plants; effluent and sewage treatment plants; parts and fittings for all the aforesaid goods; all being for industrial use and all included in Class 11

Permeable and semi-permeable membranes made from plastics or other polymeric materials; plastics films or hollow fibres for use as gas/liquid interchange media or for use in liquid/liquid or liquid/solid separations in fluid processing; semi-processed foams and substrates of plastics for use in filtration; plastics materials cast onto or impregnated into porous support structures for use in filtration, osmosis, desalination, dialysis and related liquid treatments; cloth or otherwise reinforced films and sheets of plastics for use in manufacture of liquid treatment units; all the foregoing being goods in Class 17