From experimental stress switch in the round continued with the test material
until fracture or lack of
it can be seen that the test using mass 15.036 kg on the test material that tested materials such pieces were damaged at the time. slower than the mass of 20 kg mass, causing tension at least according to the test material, and also resulted Stress less, according to which the Stress less, it will cause material fatigue caused a delay. This will make a material failure or lack of it.
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