Is there any difference between single-acting sheet stretching and double-acting sheet stretching hydraulic presses?

Single-acting thin plateTensile hydraulic pressAnd double-acting thin plate stretching hydraulic press, these are two specific types of hydraulic press, so they must be different, which can be clearly seen from their names. From the perspective of the system, the former has only one hydraulic system, while the latter has two hydraulic systems. Moreover, on the slider, the single-acting sheet stretching hydraulic press has only one slider, while the double-acting sheet stretching hydraulic press has two sliders, one large and one small.