Product Name: Rope pulley block online NUZAMAS Wire Rope Pulley Block 0.2Ton 200KG 440lbs Heavy Duty Roller Loading Snatch Block with Swivel Hook and Latch Rope Line Pulling online, Pulley Block ...

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The great Heron of Alexandria identified the pulley as one of the six basic simple machines. Today, pulleys are integral to many mechanical systems, including fan belts, flag poles, and water ...