Archived posting to the Leica Users Group, 2014/05/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On May 7, 2014, at 12:03 PM, Matthew B. Filippini wrote: > I don't know when they were first available, but I have an 1893 Carnegie > Steel Handbook that has them in both plain and galvanized steel, and I > don't think they were a new product at that time.Matt>OTT: when were > undulated steel sheets first mass produced?>I couldn't find this on the > net, so if someone could help ? >would-be ghost town archeologists such > as me need to know :-) <http://en.wikipedia.org/wiki/Corrugated_galvanised_iron> Regards, George Lottermoser george at imagist.com http://www.imagist.com http://www.imagist.com/blog http://www.linkedin.com/in/imagist