The standard 820 concrete shaft carries a galvanised steel extension bracket with an
aluminium sleeve at the junction to weather the fixing and stream-line the joint between concrete shaft and steel
bracket.
ELECO LIMITED SPHERE WORKS · CAMPFILED ROAD · ST. ALBANS · HERTFORDSHIRE
Telphone: St Albans 54524 (10 lines) Telegrams: "Voltacon" St. Albans
