Door hinges, also called roll off hinges, are mostly used on trash bin such as roll off containers and roll off dumpsters.These heavy-duty hinges with zerk fittings often used on rear doors to operate its opening and closing.Further more, this kind of hinges are strong enough to carry the door's weight.HY ENVIROTECH’s Door Hinges are perfect for welding and installing in daily application.Its good load-bearing performance also makes it very durable.This kind of door hinges is made up with one big plate, two small plates, one shaft with grease fitting&cotter pin,two washers and three bushings.
