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 "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Engine Cooling Components\Radiators". The seller is "fume7650" and is located in this country: US. This item can be shipped worldwide.