PTFE(Teflon) corrugated(convoluted) hose reinforced with stainless steel wires. More flexible and high pressure resistance Inner tube: PTFE extruded corrugated hose, features as high and low temperature resistant , anti-corrosion, anti-stickness. Outer sheath: stainless steel 304 braiding net, improve its pressure resistance and connected with fast connectors Working temperature range: constant temperature: -50 to +210 centi-degree, instant temperature, -70 to +260 centi-degree. Standard size: ID6mm, 8mm, 10mm, 13mm, 16mm, 19mm, 25mm. In plastic film, then foaming material, at last in wooden boxes, reliable for sea shipment.