Bell Crank Lever Awooden right angled lever with fulrum at the angle, the horizontal arm is of 75 cm. and vertical arm is of 20 cm., a spring balance with adjustable wing nut is attached to the shorter arm. The lever arm is with scale and grooved at every 5 cm. complete with one sliding weight of 1 kg.
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Gautam Budh Nagar, Greater Noida, Uttar Pradesh