Look Inside an Electric Car: How It Works (Lightning Bolt Books ® — Under the Hood)

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Belt Pulley Idler Designed for Industrial Machines 25601570/0 1136-0915-01 6125 760 6600 Reliable Replacement Component (2PCS)

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6" x 2" Rubber Contact Wheel for Belt Grinder – Precision Balanced Aluminum Hub, Bearing Included, Heavy Duty Industrial Grinding Drive Roller for Knife Making & Metal Fabrication

Stainless Steel Conveyor Roller Idler - 1"/1.3"/1.5" Diameter, Heavy-Duty for Industrial, Logistics, Warehouse Use, Adjustable Length (100-1000mm) - Durable Design

LIFKICH Lifting Rope Pulley Track Wheel Heavy Duty Silent Idler Pulley for Material Handling Construction for Home and Industrial Use

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ABOOFAN 1pc Steel Pulley for Lifting Heavy Duty Bearing Pulley Block for Fitness Climbing and Industrial Use Capacity Construction Silver