... frame unit, leveler grooving roller, notch and punch square machine, shearing machine Auto-line II consists of a metal feeding frame, levelling and ... -aw material feeder-levelling and grooving equipmentNotch and punch square-cut metal for TDFCut metal for Duct Line II can not ... ACL duct manufacture system combines a T-12, Pittsburgh lock machine, folder and shaped clip, high quality ducts can be easily ...