To transmit cold or hot air to airplanes through ground-airconditioner device. Type: air hose 1. Name of product: High Pressure Flexible Air Compressor Rubber Hose2. Usage: To transmit cold or hot air to airplanes through ground-airconditioner device3. Property index:Product size:Φ355mmProduct structure: Consisting of inner rubber coated fabric ply, insulation ply, outer rubber coated ply, spiral ...