Features: 38 mm to 600 mm dia in 3 to 4 Mtrs. Lengths + / - 2% Withstand Temperature: -50?C to +310?C. Construction: Two PlySilicone Hose made from Silicon Coated Glass Fibre Fabric, with an embedded Bronze plated Steel Wire helix, outer twin Glass Cord. Applications: Excellent choice for a wide range of applications, Aircraft Aerospace Vehicle and Engine Production. Cold Air / Fume application of both Positive and Negative Pressures.