Master Sang, whose given name is Yün-chiao, is fifty-one years old this year. The son of a blacksmith, he followed his father from one place to another. From his childhood he was fed the bitter water of class oppression and class exploitation; the old society drove to their deaths seven members of his family…. In 1945 the Communist Party saved his entire family. Now he is the head of the welding group of the United Factory in Wu-hsiang hsien and an honored labor model.