 
                 Beijing, CN
 Beijing, CN
                     Central Iron & Steel Research Institute
                                    Central Iron & Steel Research Institute
                                 Yong  Li
                                    Yong  Li
                                 B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 Central Iron & Steel Research Institute
                                    Central Iron & Steel Research Institute
                                 Yong  LI
                                    Yong  LI
                                 B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 Xiaobing  Hu
                                    Xiaobing  Hu
                                 C21 - METALLURGY OF IRON
                                    C21 - METALLURGY OF IRON
                                 Xiaobing  Hu
                                    Xiaobing  Hu
                                 C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
                                    C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
                                 Central Iron & Steel Research Institute
                                    Central Iron & Steel Research Institute
                                 Changjun  Wang
                                    Changjun  Wang
                                 B22 - CASTING POWDER METALLURGY
                                    B22 - CASTING POWDER METALLURGY