state any 2 situations in field wh where worm gear pulley block is used
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The Worm Gear Chain Pulley Block is made from selected high quality materials and is easy to operate. Tacklers worm gear chain pulley blocks are offered in 3 capacities in the range from 0.5 to 2 tonnes. ... Hand chain and load chain are usedaccording to IS 2429/Part II/70. The brake is easy and reliable in operation
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