... in power, metallurgy, drainage and sewage disposal to connect pump, vale and pipe, etc. It also has some multi-directional displacement ... -153Sealing1NBR,CR,EPDM4BoltnQ235A,35#5NutnQ235A,20#3.Dimension of BF-Type: PN 0.6 , PN1.0 MPa 4.About us: We ...