ASME B30.21-2014: Lever Hoists: Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings

by The American Society of Mechanical Engineers Paperback details (USA). ISBN: 978-0-7918-6921-5 ISBN-10: 0-7918-6921-0 Multiple. Distributed through American National Standards Institute (ANSI) · 2014