1, material composition The type of preheater is composed of many thin-wall tubes and plates The material : Q215 ,Kaodeng steel 09CuPCrNi-A, ND steel , S.S steel . The tube shape : round , oval, spiral groove , fin. 2,Characteristic
heat transfer effect better,not collection of ash,low steel.
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SHANDONG HENGTAO ENERGY SAVING &ENVIRONMENT PROTRECTION CO .LTD .