Aff is a manufacturer of fumeless resin-treated glass fiber filters, which are used for the filtration of molten non-ferrous metals (particularly aluminium) or their alloys during casting in foundries. These filters are suitable for applications such as gravity die-casting, sand mold casting, and investment casting of molten non-ferrous metals and their alloys.

Aff is a manufacturer of fumeless resin-treated glass fiber filters, which are used for the filtration of molten non-ferrous metals (particularly aluminium) or their alloys during casting in foundries. These filters are suitable for applications such as gravity die-casting, sand mold casting, and investment casting of molten non-ferrous metals and their alloys.