Are all the very small pipe couplings / fittings used on the steam locomotives national pipe threads or do they just use straight threads like SAE? or what?
- Re: Pipe Fittings SaltyChief
- Re: Pipe Fittings James A. O'Hearn
- Re: Pipe Fittings Clark Lord
- Re: Pipe Fittings SaltyChief
- Re: Pipe Fittings David M. Cole
- Re: Pipe Fittings Cgnr