Hom: Hlau Tube Substation Structure
Khoom siv: Q235, Q355, Q420
Welding: AWS D1.1
Kub Dip Galvanizing: ASTM A123
Daim ntawv thov: Hluav taws xob xa hluav taws xob thiab xa tawm
Pob: Ntim nrog lub hnab yas, woodcase, thawv thawv, los yog raws li tus neeg yuav tsum tau muaj.