Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Big Pit ventilation fan, report book
Health and Safety Executive report book ''Ventilating fans (and other auxiliary fans) driven by mechanical power'', filled in by Big Pit Colliery staff reporting the number of fan revolutions per minute and water gauge pressure. Dated 1980.
Pwnc
Diwydiant
Rhif yr Eitem
2001.1/718
Creu/Cynhyrchu
Health and Safety Executive
Dyddiad:
Derbyniad
Donation, 1/2/2001
Mesuriadau
Meithder
(mm): 210
Lled
(mm): 310
Uchder
(mm): 10
Deunydd
papur
Lleoliad
In store
Dosbarth
health and safetyNid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.