Who manufactures HO girder rail for trolley layouts? and do they have a website?
I knew I had seen this stuff somewhere before, so here you go:
Google?
There are 2 players in this market, you have been directed towards one of them and the second I will give you a hint…ORR Girder Rail.
David B
Go to Trolleyville, then check out Orr Street Railway Track, and then go to Trolleyville Schoolhouse for Room 2: Track Construction & Operation.
You will also find a link to Custom Traxx.