GB/T6728 RECTANGULAR HOLLOW ntu

GB/T6728 RECTANGULAR HOLLOW ntu
Txuj: GB / T6728
Qib: Q235, Q355, Q420, Q460, Q550, Q690

Loj: 20 * 30--1500 * 1000MM

Phab ntsa Thickness: 1.2--50MM

Phab ntsa Thickness kam rau ua: ± 10 feem pua

Ntev: Feem ntau 6M / 12M, kuj nyob ntawm qhov yuav tsum tau ua

Qhov zoo: Lub zog, durability, zoo nkauj, nkag tau yooj yim, raug nqi zoo, yooj yim rau fabricate

Daim Ntawv Thov: Kev tsim vaj tsev thiab kev tsim vaj tsev, Kev tsim cov rooj tog thiab khoom siv