Ice Anchor Strength An In Depth Analysis Beverly Attaway

preview_player
Показать описание
Ice Anchor strength: ice screw test, Abalakov V-thread test, Anderson A-thread test, rebored ice screw test. James Marc Beverly, PhD, IFMGA. Stephen W. Attaway, PhD. Ouray, CO, Pagosa Springs, CO.
Рекомендации по теме