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.
A young woman deadlifting in a gym. Photo Credit AmmentorpDK/iStock/Getty Images. The deadlift is a strength exercise that works several muscle groups, including your back, glutes and legs. It is one of only a handful of exercises that target muscles in the upper and lower body.ack Muscles. The erector spinae, the muscles of your low back, are some of the main movers during the deadlift exercise. These three muscles â the iliocastalis, the longissimus and the spinalis â run from near the base of your skull, down your back and attach to the lower vertebrae.