Standard
AISI, ASTM, BS, DIN, GB, JIS
Grade
Q235/Q345/A36/SS400/S235JR/S355JR/G250/G350/ASTM A572
Main part
H section/Angle bar/Welded pipe
Surface treatment
Zinc Coating/Spray-Painting/Ball Blasting
Welding test
Ultrasonic Testing/X-ray Testing
Forming
Welded Steel Structure