Storage tanks :
Low temperature & cryogenic storage tanks 
Low pressure storage tanks 
Atmospheric storage tanks 
High pressure spheres 
Mounded storage bullets 
Silos & gas holders 

Process equipment :
Columns & towers 
Pressure vessel & heat exchangers 
Reactors & separators 
Pipe spools & process skids 
Fired heaters & flare stacks 
Modular steel structures