... etc. Under extreme conditions, it can be stably and long-term used, extremely needing no maintenance. The ... widely used for the container, boiler, pipeline, and pump, valve and flange, in petrochemical and mining industry, suitable for steam, mineral oil ... , transformer oil, hydraulic oil, fuel, water, and sea water, etc. TypeYB-RGCompressibility15~35%Recovery≥20%Pressure300barGraphite ...