... air duct 1.duct diameter:100mm to 500mm 2.Duct material: Silicone ans Fiber High Temperature Resistance Flexible Air Duct AHT - ... Temperature Range-60 °C/+400 °CAvailable Diameters50mm - 1000mmAvailable Lengths1m,1.5m,2m,3m,5m,6m,7.5m,10mPackingPaper carton box with ... it depends on the ordered qtyPORTShanghai port or Ningbo portPAYMENT 30% deposit before the production and 70% balance before the ...