Q: What's the difference between Auto Line III and Auto Line V?

A: Auto Line III is a starter of duct manufacture. Auto Line III consists with decoiler-straightening-beading-punching & notching-folding-shearing. Auto Line V consists the fuctions of Auto Line III, and additionally with pittsburgh lock forming,TDF flange forming and TDF hydraulic folding. Line III is one part of Line V.