50 years since the founding of the PR China
60th anniversary of the founding of PRC
A project for founding souls
at the earlier stage of the founding of the PRC
Early period after the founding of new China
Founding
成立前后
冻铸法
铸造
创建
澄清
熔解
铸造材料
成立
建国
建立
Founding Dossier of Wri0
Founding moldability technology