Stone: Pros:-good strength, durability Weaknesses: the volume of a large volume of complex machining,Wood: Pros: wiry, strong links have the aesthetics Weaknesses: termites, rotIron: Pros: good strength, durable, hard, Weaknesses: vulnerable to corrosion, oxidationDiameter: advantages: the ability to get and keep wind, dustWeaknesses: weak, fragile bearing
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