BS 585-1:1989

Действует

Wood stairs, Specification for stairs with closed risers for domestic use, including straight and winder flights and quarter or half landings — 28 стр.

Описание Изменения Ссылки Версии

ICS

91.060.30 Ceilings. Including screeds, ramps, etc. / Потолки. Полы. Лестницы. Включая маяки, пандусы и т.д.