1 Shanghai jiaotong university A+ 9 Jilin university A 17 Zhejiang university a

2 Harbin Institute of Technology A+ 10 Tianjin University A 18 Sichuan University A

3 Tsinghua University A+ 1 1 Tongji University A 19 Lanzhou University of Technology A

4 South China University of Technology A+ 12 Xi An Jiaotong University A 20 Beihang University A

5 Northwestern Polytechnical University A+ 13 Dalian University of Technology A 2 1 Wuhan University of Technology A

6 University of Science and Technology Beijing A 14 Shandong University A 22 Beijing University of Technology A

7 Huazhong University of Science and Technology A 15 Zhengzhou University A 23 Southeast University A

8 northeastern university A 16 taiyuan university of technology a

Casting refers to the processing method of pouring liquid substances at room temperature into a mold with a specific shape and waiting for its solidification. Casting is a kind of metal hot working technology that human beings mastered earlier, and it has a history of about 6000 years. China entered the heyday of bronze casting from about 1700 BC to 1000 BC, and its technology reached a fairly high level.