Jumbo NA 1993 Packing Gasket Tombo NA 1993 Non Asbestos Green Sheet (Green sheet) Features: the main component is the inorganic fibres for the inorganic filler and aramid fibers are added; oil-resistant synthetic rubber is then added as a binder to form green NA (non-asbestos) pieces together, which contain absolutely no asbestos. This can be used for gasket flange stainless steel halogen leachable since that bit. AP