Galvanized square hollow section

1:material grade :Q195-Q235
2:standard:GB/ASTM/JIT/BS
3:specification:20*20-150*150
4:technique:hot rolled
5:surface treatment :galvanized
6:application:structure steel pipe
7:type:LMS
8:export market;
North America
South America
Eastern Europe
Southeast Asia
Africa
Oceania
Mid East
Eastern Asia
Western Europe