The primary framing systems are composed of girders and columns, made by build-up H-section steel members.
National standard steel Q235B or Q345B are selected to conform to the engineering design.
Various rigid frame styles are specifically designed for selection to each requirement.
Welding is carried out to meet national standards by advanced automatic welding equipments.
All steels are cleaned with imported multiple spray beads shot-blasting equipment to insure all steel surfaces are thoroughly cleaned.
Rust-resisting primer is painted to ensure that steel be protected from corrosion.