... compensation:10-100mm6.Angle direction compensation:10-40degrees7.Media:hot air, SO2, steam, water, oil, acid, gas and etc. Advantage:High ... in thermo-electricity, steel, aviation, shipbuilding, spin, electric power, metallurgy, food machinery, petro-chemical, environment protection equipment, heat supply network industry ... any question, please contact us! Bellow Element- Metal mechanical bellow seal