I am looking at website on google based on the terms "structural steel fabrication" and simply "steel fabrication" I know that there must be a difference between the two terms, but it seems that many website authors use the two terms interchangeably. Do you know the key differences between the two terms?
Structural steel fabrication uses I beams, columns, channel sections etc. that are used for supporting loads.
Steel fabrication would include such things as handrails, steel formwork, tanks etc.
This is not a complete answer but it should give you an idea.