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Civil Construction Machines Within 20000

Most steel construction is done with a type of steel called mild steel.Mild steel is a material that is immensely strong.Take a circular bar of steel 1 inch 25mm in diameter.If you were to attach this bar securely to your ceiling, you could hang from it 20,000 kg which is 20 tons, or any one of the following 18 honda city cars.

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