Standard : ASTM A106 - Grade B, ASTM A53 - Grade B , API - 5L, GOST, JIS, DIN, GB/T
I-Beam
H-Beam
Equale steel angle
Chanel ( U Bar )
Standard - Steel grade : TCVN 3783-84, ASTM-A53,…
Standard : ASTM A106 - Grade B, ASTM A53…
Black - Gavanized Square - Rectangle Tube