also: エッチがたこう
H-section steel; H beam; rolled steel joint
Technical term in construction and engineering for a steel beam with an H-shaped cross-section.
H-section steel is used in the framework of this building.
Kana spelling using the alternative reading エッチがたこう.
Compound of Ｈ (eichi, the letter H) + 形 (gata, shape) + 鋼 (kō, steel), referring to the H-shaped cross-section of the steel beam.