Introduction to stone tools: The stone tools unearthed in the site include both hammered stone tools and polished stone tools, and there are many types. There are shovels, hoes, cutters, choppers, knockers, scrapers, throwers, pointed tools, grinders, stone anvils, etc., as well as fine stone tools such as stone arrowheads and stone spears, and some Stone tools, especially polished stone tools, are sometimes made of jade and are polished extremely finely.
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