... 3.safety and reliability 4.MOQ: 100 pieces 5. in-time delivery Technology and Applications:Manifold Tubular Heaters is made of metallic ... tube is Stainless Steel, iron, copper and so on.In the middle of the tube, there are spiral alloy wire ... , air heater, oven, hot die and other devices. Widely used in aviation, shipbuilding, petroleum, chemicals, washing, chemical fiber, machinery, automobile, ...