When sourcing Air Slide Fabric (also known as aeration belt or fluidizing fabric), the most critical factor is Permeability (Air Porosity). You must ensure the fabric provides uniform air distribution to prevent 'channeling' during material transport. Key specs include Thickness (typically 4mm to 10mm), Tensile Strength (minimum 4000N/5cm for heavy-duty use), and Temperature Resistance. For standard cement transport, Polyester (up to 150°C) is sufficient, but for high-temp fly ash or chemical processing, Nomex or Aramid (up to 250°C) is required.