Api, Api 5CT, Api 5L, Api 5DP, Astm A106-2006, Astm A53-2007, Bs 1387, Bs en 39, Bs EN10219, Bs EN10217, Din en 10217-1-2005, Din 17175, Din 2444, Gb/t 3091から2001, Jis G3444-2006
For 15*15-500*500MM galvanized square and rectangular steel hollow section packaging:
1. In bulk
2. In bundles with steel strips
3. Wrapped with water proof plastic package