Linyi Luozhuang District New Datong Economizer Foundry production SZL2-13-AⅡ series of industrial boiler economizer cast iron pipe fittings manufacturers of professional, execution People's Republic of China Machinery Industry Standard JB / T 2192-1993, products the material for the HT200 gray cast iron (C: 3.3-3.5 Si: 1.4-2.4 Mn: 0.7-1.0 P: <0.2 S: <0.15). The main products are: airfoil, streamlined, spiral, 3 m, 2.5 m, 2 m, 1.5 m, 1.2 m, 1 m and other specifications of cast iron economizer tubes, hot tubes, air preheater, the size of the elbow and various accessories. Provide assembly 1-100 ton boiler economizer.