API 5B Coupling GRADE: J55, K55, N80-1, N80-Q, L80, C90, P110,Q125; SIZE: Tubing co...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...