The lowest or basic strength of aluminum and each of its alloys is determined when the metal is in the annealed or soft condition. This is designated as the O (letter O) temper. For example, the annealed condition for alloy 1145 is written 1145-O.
What is a scissor lift? A scissor lift is a type of aerial work platform used to lift personnel. These platforms extend and retract vertically with the help of the scissor linkages that fold in a crisscross manner. Scissor lifts are typically electrically powered although there are some that are powered by internal combustion engines.
The Simple Way Everybody Screws Up Tricep Pushdowns. Tricep Pushdowns are one of the first exercises most lifters learn, and for good reason. Whether you perform them with a bar or a rope, Pushdownsâoften called Tricep Extensionsâdeliver a serious pump, helping you build bulging muscles along the back of your arms. That is, of course, if you perform the move correctly.