... etc.3. Extruding deviceIt is composed of hydro-cylinder,extrude piston,sealant cylinder,glue head block,dispensing head etc.4. Hydraulic ... parts, magnet valve, reducing valve,pressure controlled valve,cylinder,joint and pipe line.6. Electric control systemIt is composed ... which means the action of cylinder for pressure rollers, pressure roller press aluminium spacer and aluminium spacer advance, when ...