It mainly consists of hydraulic system, tube expanding gun, tube expanding head, high pressure tube, control box, etc. The series of ... -high Pressure Hydraulic Tube expander mainly consist of hydraulic system, tube expanding gun, tube expanding head, high pressure tube, control box, etc ... GUN: 15KG EXPANDING MEDIUM: Water Purification AIR PRESSURE:1MPa FLOW: 1m3/min VOLTAGE: 220V/50HZ INPUT POWER: 50W ...