Born from a foundry family in 1954, Jingqing, Song worked in the state owned Qingdao Foundry Machinery Co., Ltd after his graduation. In 28 years since his starting managing company independently in 1974, he had been putting his experience and theories into practice all the time. Based on the family inherited knowledge and deeply studied in the foundry technics of Tang Dynasty, he accomplished excellent success in mastering the pivotal technology of foundry.