Round steel spreader Used in the machine manufacturing process to fix the round steel object so that it occupies the correct position to accept the construction or inspection of the device. Also known as round steel fixture. Generally speaking, round steel spreader belongs to the fixture class, in the process of any process, used to quickly, convenient and safe installation of the workpiece device, can be called fixture. Such as welding fixture, inspection fixture, assembly fixture, machine fixture and so on. One of the most common machine tool fixture, often referred to as fixture