An interesting inside look of the YuIAZ (Yuznouralsk Insulators and Fittings Factory) with some glass "sombrero" suspensions exiting the smoking hot Lehr.

(Yuznouralskaya Izolyatori & Armatura Zavod)

For more information, check out this 28 page PDF file, in English, with several nice color photos, and a lot of detailed descriptions of various suspension and pintyp insulators.

http://www.gig-group.com/data/File/en/Glass_Insulators.pdf

Global Insulators Group is the merged management group of insulator manufacturers of Yuznouralsk and Lviv.