ASME B16.5 LABIUM est LABIUM est accrescens American Matal StandAed.Class CL WN LABIUM est infima pressura flacge.flanges habere plures pressuris: Cl150, CL300, CL600, CL900, CL300, CL600, CL150, CL300, CL600, CL150, CL300, CL600, CL150, CL300, CL600, CL150, CL300, CL600, CL150, CL300, Cl2500.