Brief Introduction Air preheater is the equipment that uses the boiler tail flue smoke to heat the entering air with its inside tubes .It is used to improve the heat exchange performance of the boiler, and reduce energy consumption. To adapt the different boiler burning type, different fuel and different fume ingredient, we developed the below enamel tube air preheaters to fit the different mediem: 1. The CFB boiler and coal powder boiler used enamel steel tubes, seam or seamless steel tube with green colour. 2. The rubbish burning furnace, biomass boiler used enamel steel tubes, seam or seamless steel tube with blue colour. 3. The Chain grate and layer burning boiler used enamel steel tubes, seam or seamless steel tube with brown colour. 4. The oil burning boiler, coking boiler and gas boiler used enamel steel tubes,seam or seamless steel tube with dark green. Why Choose Us? 1). Chinese famous brand 2). Competitive price with trusted quality 3). Short delivery lead time and excellent after-sale service 4). Certificate ISO9001, ISO14001, 5).  We always produce good quality products with competitive price. 6). We have 50 professional engineers, 15 professional and technical teams for boiler improvement and more than 100 success cases of boiler energy-saving technological transformation.