Lost. According to the official website of Huatu Education, we learned that the Iron Plate God Number, one of the ancient Chinese numerology numbers, was invented by Shao Yong (Shao Kangjie) in the Song Dynasty. It was later divided into two rows. The Southern Style Iron Plate God Number followed the predecessors from south to Hong Kong. It was spread from the mainland to Hong Kong and disappeared, and the northern style iron plate magic number has been lost in modern times.