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There is evidence that the basic ladder was first conceived over 10,000 years ago. Since that time, ladders have evolved to become a versatile product available in a number of materials and forms to suit many functions. This course explains the methods and advantages of using aluminum for ladders, the many ways ladders can be configured to create the safest and most comfortable usage, the various optional accessories available, and the codes and standards that govern and inform their design.
Displaying 1 course(s).