OAT - Wedge profile backing ring
Wedge profile backing ring, with metal core and a PP-GR coating. According to ANSI B16.5 cl.150 for stub QBM and QBAM.
Wedge profile backing ring, with metal core and a PP-GR coating. According to ANSI B16.5 cl.150 for stub QBM and QBAM.
