Your I 140 should match the job description with the Labor ,
U alwasy use only one I 140 at the time of filing for I 485, AOS, make sure the job description should match with what U or your attorney has mentioned at the time of obtaining the LABOR certificate from the DOL. Again pl check with your attorney or take legal opinion on this.
I am not an attorney. Use this info at your own discretion.
Ramukesi