6Hebei Construction Engineering Quality Test Center, Teat Reporton Chimney Shell Structure of Phase one, July ,2011.
7Construction Engineering Quality Test Center of ChinaMetallurgical Construction Research Institute Co., LTD,QualitySafety Test Report of 210-meter Chimney Concrete Shell,September,2011.
8Northwest Electric Power Design Institute , Recovering andReinforcing Design Scheme on Tube Leakage-corrasion of 210/7-meter Single Tube Chimney in Limestone-gypsum Wet Flue GasDesulphurization , October,2011.