Energy storage charging air duct insulation nail welding machine with built-in capacitor stud welding machine with welding torch. Product Name: Air Duct Insulation Nail Welding Machine. Machine features: extremely fast charging welding, welding is firm and beautiful. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Welding & Soldering Equipment\Welding Equipment & Accessories\Welders, Cutters & Torches\Spot Welders". The seller is "jewelry-business-machine" and is located in this country: CN.This item can be shipped worldwide.