Concrete dead-end anchor blocks (clamping/buttress blocks), cable anchor blocks (guy anchor blocks), and marker posts (marker blocks/bricks) are all core concrete components used as auxiliary elements in State Grid overhead power transmission lines. They are manufactured in accordance with national standards and are suitable for the entire power grid construction, operation, and maintenance process .

Concrete Dead-end Anchor Blocks (Clamping/Buttress Blocks): These clamp the base of the pole, enhancing its lateral stability and preventing lateral displacement, thereby ensuring the pole remains upright.

Cable Anchor Blocks (Guy Anchor Blocks): These anchor the guy wire system, increasing the pole's pull-out and overturning resistance. They are typically used at corner poles and terminal poles.

Marker Posts (Marker Blocks/Bricks): These clearly mark information such as line direction, burial depth, and ownership. They also serve as a warning and protective function, aiding State Grid in standardized line inspection and safety management. All components are pressure-resistant and corrosion-resistant, suitable for various outdoor operating conditions.