This refers to a grid-shaped sheet in which vertical and horizontal lines are arranged at right angles using cold-rolled or draw-processed high-strength steel wires, and the intersections are joined by electric resistance welding.

Not only the shear reinforcement bars, but also the main reinforcement bars, are manufactured in one piece, which is more economical as it saves a lot of work time and labor.

The truss girder serves as a reasonable SHEAR CONNECTOR between the cast-in-place concrete and the assembly (PC) plate. It is composed of three members – the upper bar, lower bar, and truss bar (lattice bar) – and the contact points of each member are integrated by means of electric resistance welding.

Regular steel wire refers to plain wire manufactured in accordance with KS standards by drawing and processing low-carbon steel wire rod, which is a raw material, at room temperature. Its main uses include reinforcing wires for wire mesh, concrete reinforcement, and Hume pipes, as well as materials for secondary products such as various types of wire mesh fabric and nails.

These are block-shaped ties that fasten the rails to determine their positions, maintain the track gauge accurately, support the rails for each left and right rail, and distribute the live load transmitted from the rails to the bottom of the ballast. The rails are supported by each left and right rail, and a method of embedding them in ballast concrete is used so that the block surface is exposed on the upper surface.

Fences are mainly used to demarcate boundaries between areas or buildings, such as land, schools, houses, factories, apartments, kindergartens, country houses, rest areas, parking lots, sports facilities, churches, etc., when independent space is needed.