The core of the radiator is welded in vacuum brazing furnace, no epoxy. The tanks are 100% welded by TIG. We are factory sales, we take any wholesale order, feel free to ask.Thank you for your cooperation. This item is in the category "Vehicle Parts & Accessories\Car & Truck Parts & Accessories\Engine Cooling Components\Radiators". The seller is "msrr74" and is located in this country: AU. This item can be shipped worldwide.