China hot water boiler spare parts enamel tube with asme standard is manufactured with the enamel which is developed by our company with the scientific formula and is evenly coated on the surface of the steel tube by the auto enamel tube production line. To use enamel tube as the heat exchange parts will be anti-abrasion and anti-corrosion, the surface is smooth and low cost of maintenance. The introduction of China hot water boiler spare parts enamel tube with asme standard. Material: carbon steel, corten steel or equivalent The air preheater exists the problem of collection of ash, worn down, low temperature corrosion to effect the safe and economical operation for the boiler unit. At the moment, the investment for air preheater is 6%-8% of the whole boiler investment in the industrial boiler and power station boil, due to the problem of collection of ash, worn down, low temperature corrosion to incur the direct loss of replacing equipment and shuting down is 4-5% of the operation cost and loss will be more large when the boiler is shut down incurred by this problem. Aim at the above questions, we established the exclusive enamel research and development center to supply the complete solution and organize the specific research personnel to tackle key problems, and proceed the large quantities of simulated test and operation test to develop the new heat transfer parts ---enamel tubes and received 5 patents.