sub frames/ control arms and torque boxes....

[avbcon12]

i work at a metel shop and was wondering if i can make sub frame connectors? where do i put and weld them?
where do i weld the torque boxes? and i think i can box the control arms right?
please send pics of any of these parts if you have them to show me where they go and where they get welded.

thanks for the help.
Adam