... ,8ton 2.Punch Distance ,40mm 3.Riveting distance,20mm Round duct elbow rivet machine ATM-09 1.Pressure,8ton2.Punch Distance ,40mm3 ... 000 to 100,000times.This machine mainly use for HVAC Sheet connection,it more easy and Quick.And it do notmangle the sheet ... folder,auto cutting to length line,pipe bending machine,FN seam welder,notching and shearing machine.Our certificate:1.CE2.ISO901:2000Please contant ...