... long-term continuous operation;2. Independent high pressure cylinder, integral alloy steel pump;3. Plunger core automatic regulate device; ... – 2800bar 2.Using to wash Aviation Expansion joints, grease, rubber and hydraulic fluids on runways. With pressure 690bar ... With pressure 1000bar – 2800bar10.using in Highway Maintenance Cleaning of grease, vegetation, mud tar, cement or asphalt on vehicles & ...