1Production Practice to Low-cost Furnace Protection of No.51 080 m3 BF in Laiwu SteelZHAO Hongyu, ZHANG Zhen, WANG Zhigang, XU AiboProduction Technology1-32Practice of Long Time Blowing Down and Reblowingof Jinan Steel's No.1 1750 m3 BFSHI Yongkui, AN Ming, ZOU JinchengProduction Technology4-5,143Process Optimization Practice of Converter Bottom Blowing SystemNING Zhichang, MIAO Zhenlu, ZHAO Youhu, ZHAO LiangProduction Technology6-8,144Development and Application of Refining Process Technology of Narrow Composition Slag System for All Kinds of SteelLIU WenpingProduction Technology9-115Development and Production Practice of Atmospheric Corrosion Resisting Steel 09CuPCrNi-A for Railway Rolling StockWANG XiaokeProduction Technology12-146Development and Production Practice of Ultra Deep Drawing Cold Rolled Steel Strip for Inner Liner of Electric CookerCHEN Pu, HOU Yuanxin, MENG Haiyan, ZHU AimeiProduction Technology15-187Development and Production Practice of AISI4137H Steel for Drill Pipe JointYUAN ShujunProduction Technology19-21,268Development and Production of Weldable High Strength Steel Bar 500BHAN XiaoyuProduction Technology22-23,269Development and Production Practice of CL.516D Steel for Injection Molding MachineWANG Chao, ZHANG Tao, MA YuchaoProduction Technology24-2610Development and Production of Boiler Derrick Steel 12Cr1MoV in Laiwu SteelWANG ZongbinProduction Technology27,3211Exploration and Practice of Curve Maintenance ModeL(U) MingxiProduction Technology28-29,3212Analysis and Improvement of Foreign Body Defects of Strip SurfaceGUO Qiang, LI FengProduction Technology30-3213Prospecting Analysis on 3D Modeling of Industrial Furnace Based on BIM TechnologySUN Huayun, LI Mingjing, LU YongTest Research33-3614Production Practice of Improving Prediction Accuracy of Sinter CompositionTANG LingjianTest Research37-3915Analysis of Influence Factors on DWTT Evaluation for Pipeline SteelLIU Yunfeng, WANG JingTest Research40-42,4516Quality Analysis of 20CrMnTiH5 Gear Steel ProductsGUO ZhiyuanTest Research43-4517Application Example of Nondestructive Testing Technology on Steel PlateLIU CaifengTest Research46-4718Analysis and Improvement of Converter Gas RecoveryJIA Jingwei, LIU ZhenweiEnergy Saving and Pollution Reducing48,5019Waste Heat Energy Utilization of Flue Gas and Cooling Zone of KilnWANG Kai, LIU Yuming, CHENG QingguoEnergy Saving and Pollution Reducing49-5020Stability Modification of Hot Water System of Sintering Mixer in Laiwu SteelWEI Jianli, XU HongyuanEnergy Saving and Pollution Reducing51-52 