arc - auxi
- automatic rejection
- automatic remote control
- automatic reversal
- automatic reversal system
- automatic roll-forming mill
- automatic scanning
- automatic scarfing
- automatic setting
- automatic sheet counter
- automatic spot welding
- automatic stabilizer
- automatic stamper
- automatic station
- automatic steel
- automatic stock screening
- automatic stove changing
- automatic strip-straightening machine
- automatic taphole drill
- automatic temperature recorder
- automatic tinning equipment
- automatic tipping
- automatic titrating apparatus
- automatic titration
- automatic trolley return
- automatic weighing
- automatic weighing system
- automatic-gauge classifier
- automatic-weight classifier
- automobile body sheet
- automobile steel
- automotive battery
- automotive scrap
- autooxidation
- autoproportioner
- autoradiography
- autosyn
- autotimer
- autowrecker
- autunite