As per ASTM A53, BS1387, , GB/T13793, GB/T3091, GB/T 6728, GB/T6725
Surface treatment: galvanized or coated with oil or black color to prevent rusting
Length 5.8M /6M or as per customer’s request.Minimum order: 50MT per size
|
Commodity |
Size |
Size tolerance |
Thickness |
Length Tolerance |
|
Hollow Section |
16×16~25.4×25.4 |
±0.15 |
0.7~2.0 |
+50mm |
|
|
30×30~50×50 |
±0.20 |
1.0~3.0 |
+50mm |
|
|
60×60 |
±0.15 |
0.7~2.0 |
+50mm |
|
|
100×100--200×200 |
±0.60 |
3.0~6.0 |
+50mm |
Msn:
