Square and rectangular tubes are our main products, which are usually used in fields of buildings and bridges. So they are very popular among builders.
Due to their high strength, Q355B square tubes are purchased by many clients every year. Just recently, one of our old customers placed another order for Q355B square tube.
The detailed specifications are as follows

Specifications
| Standard | GB/T 6728 |
| Material | Q355B |
| Dimension | 400mm*400mm*12mm |
| Length | 7.17m, 8.07m, 8.97m |
Inspection before Delivery
We promise to provide high quality products for clients. We have professional quality control team to control quality, all square tubes will be inspected carefully before delivery. "Quality first" is our business philosophy.

Product Show
Q355B square tubes are available in multiple dimensions. If you have any needs, the dimension and length can also be customized.






