In the process of extension sleeve press-fitting of the bearing pressing machine. electro-hydraulic servo system of valve-controlled symmetrical cylinder (ESSVSC) is an important and critical control module. and its performance has a significant impact on the working accuracy of such equipment. People have proposed various related control algorithms. https://www.roneverhart.com/Starburst-Fruit-Chews-Candy-Fun-Size-Packs-Halloween-Mix-30-Piece-Bag/