1Development Status and Tendency of Thin-slab Casting-process Technology in ChinaKANG Yong-linMonograph and Overview1-72Should Paying Attention to Developing the Extended Working of Rolled ProductsZHANG Shu-tang, ZHOU Ji-zhiMonograph and Overview8-113Development Status and Prospect of Domestic Heat Treatment Process and Facilities for Medium PlateSHAO Zheng-weiMonograph and Overview11-154Application of Hot Air Sintering Technology in 3# 105m2 Sinter Machine in LaigangWU Zhi-jun, GAO Bin, CAO BinProduction Technology15-175Process Design and Improvement of Slag Disposal System for Jigang's 1750m3 BFHUANG De-li, WANG Jian-xin, FU Li-yanProduction Technology18-206Practice of Laigang's 1#750m3 Blast Furnace Late Protection and Strengthening OperationWANG Qing-chun, DENG Ji-qin, WEI Kai-qing, ZHANG Hua-weiProduction Technology21-237Optimization and Practice of Cooling System for Blast-furnace ShaftCUI Shi-xuanProduction Technology23-248Design and Application of the Hydraulic Reciprocal Feeder with Travel Prolongation MechanismZHANG Guang-ming, ZHAO Heng-tao, LIU Juan, YANG FengProduction Technology25-269Process Optimization of 120t Ladle Furnace at JigangZHENG Shu-sheng, TANG Li-dong, ZHANG Mao-cunProduction Technology26-2810Practice of Producing 15.5mm Heavy Strip Through 950 Hot Tandem MillLI Zhou, WANG De-hou, LI Zhi-ping, CAO Xu-dongProduction Technology29-3011Improvement of the Hydraulic System and Control Program for the Rotary Distributor in Annular Shaft Lime KilnBAI Hong-guang, QU Si-min, JIA Fa-qiang, LV Hai-jing, CUI PengProduction Technology31-3212Application of Liquid Level Automatic Control System with Co60 Radiation Method in CasterDIAO Hong-minProduction Technology33-3413Pressure Fuzzy Control Systems for Several Coke Ovens Gas CollectorsKANG Chun-qing, YU Zhen-dong, LIU Cheng-huiProduction Technology35-3714Application of Upwards Lamination Stoping-cemented Fill Method at Houzhuang Mining AreaZHAO Yong, ZHANG Hua, ZHANG Zhao-lin, LIN Yong-xinProduction Technology37-3915Rapid Determination of Metallic Ferro Content in Sponge Iron by Ferric Chloride - Potassium Dichromate Volumetric MethodZHANG Hui-bing, YANG Zong-xiang, DU Yan-fu, WANG Hong-leiProduction Technology40-4116Compare and Analysis of GPS Height Fit by Polyhedral Function and Conicoid FunctionLI Jing-wei, YANG Yin-kuei, GAO Jian, ZHOU Guang-yong, LI BinProduction Technology42-4317Study on Purification of Waste Acid from Benzol Refining by Condensation and Extraction MethodQI Hua, CHEN Chang-hua, LI De-jin, HU Xin-liang, MENG Fan-gangTest Research44-4718Study and Application of Magnesium Desulphurization TechnologyWANG Kai, HU Xiao-hong, BI Yong-jie, LIU Mei, ZHAO Dong-qiTest Research47-5019Barrel Spalling Analysis of 45Cr4NiMoV Forged Steel Backup Roll for Hot RollingCHEN Shou-guan, WANG Jian-ze, KANG Yong-lin, LIU Qian-fan, BAI Peng-feiTest Research51-5420Discussion of the Heating System for Vanadium Alloy HRB400 Hot Ribbed Steel BarsLUAN Zhao-liang, JIAO Hong, WANG Xue-an, DONG Chang-xingTest Research54-56 