This kind Alligator Shears are also named Hydraulic Alligator Shears and Crocodile Shears. br br They are widely used in recycling companies, automobile dismantling plants, smelting and casting industry to cut scrap metal, scrap steel, scrap copper pipe and steel pipe and so on into qualified furnaces. br br The blades are made in German so they are strong enough. And there are two control ways for you to choose--automatic or manual. br Email:peter@enerpat.