Doorkeeper can also be said of a person who is posted at the door to guard, but #Doorkeeper in the hardware and manufacturing sense is the #mechanical or #automatic device that holds #doors closed and regulates passage through them—e.g., latches, locks, and hinges.

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INDGIRKA makes sheet metal production lines that are both unique and flexible. These lines are used to make casing for Electrical Enclosures and distribution cabinets. These fully automatic lines for punching and bending produce a lot of work at a low cost.

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