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purpose od crushing test in arab

Oct 29 2015 · Purpose The BieringSørensen test is a timed measure used to assess the endurance of the trunk extensor muscles It is used to assist in the prediction of the incidence and occurrence of low back pain in patients Area of Assessment Pain Strength Assessment Type Performance Measure...As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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