Cold-formde welded carbon steel structural tubing in round and shaps (ASTM A 500-1993) JIS G3444 STK50BS 1139 (EN39) GB / T13793-92
Cold-formde welded carbon steel structural tubing in round and shaps (ASTM A 500-1993)
JIS G3444 S
| Technique: | Welded |
| Section Shape: | Round |
| Standard: | GB |