Oil tank 87m diameter, details of structure.
Drawing labels, details, and other text information extracted from the CAD file (Translated from Catalan):
Victorian engineers cano and associates s.a., ralph s. flowers, date, levanto, foundations for fuel tanks, calculation, drawing, stairs, plantadelosarefuerzo, secciontipicadelosaca bezalesypilotes, important notes:, times the diameter as a minimum, typical detail of slab steel, typical capital, varies, typical perimeter detail, steel tank, upper, squares, in the entire perimeter, inclined balls, balls, internal, typical detail internal balls, coating, ball ears, all perimeter balls, will be inclined in the radial direction