During the war between the Liao and the Song (979-1004), the place where our Yinan County is located was a battlefield. He is the representative inheritor of Langya ancient military bow. There is the producing procedure contains about 50 steps; includes selecting, removing hair, soaking, steaming, cutting, scraping, storing, reinforcing, covering, string the bow. All that steps will make the most powerful ancient bows. https://goo.gl/zXGjwu