changfeng products have been successfully supplied to about 500 power plants worldwide for customers including Harbin Electric Corporation, Shanghai Electric Group Co., Ltd, Dongfang Electric Corporation, Alstom, B&W, Foster Wheeler, GE, BHEL, etc. By adopting latest process of hot extrusion, cold pilgering (drawing) and heat treatment, Jiuli manufactured stainless steel boiler tube for (ultra) supercritical boilers which realizes localization of production and changes the situation of depending on imports.