Help with resume

I’m having a hard time coming up with things to put on a resume. I’ve never had any official fanuc training or even a certificate, but lucked into a job where I gained five years of experience working with Fanuc robots and the equipment that accompanies them. I worked at a place called Gestamp that makes parts for Mercedes so I worked with turntables, pneumatic clamps, automated “cells” basically with material handler robots and spot/mig welding robots. My experience before that was kind of general maintenance on conveyor systems. Any help at all to make my experience sound useful/legitimate on a resume would be much appreciated.