There are many people who use Iron Spear in history. Iron Spear is just only made of pure iron or there are the other forms?This paper studies the related issues and think there are mainly seven forms of Iron Spear:Iron Spear of Iron Spear Head;Iron Spear of Iron Tip and Iron Spear Head;Iron Spear of Iron Rod;Spear to Resist a Horse;Spear with Iron Ridge;Iron Spear of Wooden Rod;A Long Spear with Iron Plate.
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