... 84029,952,000 Hollow Block390x190x190mm1019,2005,760,000 Multi-hole Brick240x115x90mm2446,08013,824,000 Pathway Brick200x100x60mm3647,23214,169, ... the oil flow and pressure.Buffer the hydraulic cylinder, to protect the cylinder from damage caused by inertia;Guarantee production stability ... is compact in structure,stable in performance,convenient to operate and maintain.The investment of this project ...