| Product | Specification | Material | Prices |
| carbon steel square and rectangular tubes | 25*25*2.5 | Q235B | $648 |
| carbon steel square and rectangular tubes | 30*30*2.5 | Q195-235 | $623 |
| carbon steel square and rectangular tubes | 40*40*2.5 | Q195-235 | $612 |
| carbon steel square and rectangular tubes | 40*40*2.75 | Q195-235 | $613 |
| carbon steel square and rectangular tubes | 50*50*2.5 | Q235B | $608 |
| carbon steel square and rectangular tubes | 50*50*2.75 | Q195-235 | $608 |
| carbon steel square and rectangular tubes | 50*50*3.5 | Q235B | $600 |
| carbon steel square and rectangular tubes | 60*60*3.75 | Q195-235 | $608 |
| carbon steel square and rectangular tubes | 80*80*3.5 | Q195-235 | $610 |