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Weight machines use gravity as the primary source of resistance, and a combination of simple machines to convey that resistance, to the person using the machine. Each of the simple machines (pulley, lever, wheel, incline) changes the mechanical advantage of the overall machine relative to the weight.
A weight machine is an exercise machine used for weight training that uses gravity as the primary source of resistance and a combination of simple machines to convey that resistance to the person using the machine.
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related to: alibaba gym equipment reviews and comparisons free templateglobalindustrial.com has been visited by 100K+ users in the past month
alibaba.com has been visited by 100K+ users in the past month