Octagonal Zinc Galvanized Birta Iftiinka Birta leh oo leh saxan Saldhig iyo Gacan Keli ah QalabCodsaday in walxaha birta guud-ujeeddada GB/T1591-2008, Q235, Q345 loo isticmaalo Shiinaha.
Qalabka Q235 ilaa SS400, ASTM A36. Cadaadiska Wax-soosaarka ugu yar 235 Mpa.
Q345 oo u dhiganta S355JR. Gr 50. Cadaadiska Wax-soosaarka Da'da 345 Mpa.
Caadi ahaan waxaan u isticmaalnaa Q235 tiirarka iftiiminta.
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