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  • Do you know the origin of screws?

    2021-05-24

    The first person to describe the spiral was the Greek scientist Archimedes (approximately 287 BC-212 BC). The Archimedes spiral is a huge spiral in a wooden cylinder, used to lift water from one level to another, and irrigate the field. The true inventor may not be Archimedes himself. Maybe he just Read More

  • electric screw driver

    2020-10-01

    electric screw driverAn electric screwdriver is an electric tool used to tighten and loosen screws. The power tool is equipped with a mechanism for adjusting and limiting torque, which is mainly used in assembly lines and is one of the necessary tools for most production enterprises.Electric screwdr Read More

  • What are the types of jacks?

    2020-06-10

    What are the types of jacks?1. Screw jack. 2. Hydraulic jack. 3. Electric jack. Read More

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