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Fixed End

Simple structure: Usually, it is a solid end plate welded to one end of the steel support main body or a component with a simple
connecting plate. Its length is fixed, featuring direct force transmission, high load-bearing capacity, easy installation, low
cost and high reliability. No moving parts, making it less prone to failure due to loosening or wear. Applicable scenario: For
example, in a symmetrical support system, the ends of the middle support usually adopt support plugs.

Welded Telescopic End

Adjustability: This is its core feature. It consists of a "U-shaped" slot and an adjustable wedge-shaped slider (wedge iron).
Application scenarios: Primarily used for the movable end of steel supports (the end where the jack applies prestress). It is the
most commonly used and standard end form in deep foundation pit support.

Bolt-on Telescopic End

:Modular and detachable: It is an independent unit rather than being welded on. It also has adjustability: there is a wedge-shaped
iron inside for applying and locking the prestress. Adaptability: It can be flexibly combined with standard support pipe sections
of different lengths to form the required support length.Reduces on-site welding: Using bolt connections reduces on-site welding
operations, improving installation speed and safety.