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What are racing jacks made of?

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Steel

Car and trolley jacks, axle stands, bottle jack, trolley jack, racing jack, vehicles, maintenance, mechanics, DIYers, wonkee donkee, hydraulic. Steel is created by adding carbon to iron. These elements give steel its strength, making it suitable for lifting heavy loads.
Car jacks, trolley jacks, mechanic, specialist tools, DIYer, wonkee donkee, maintenance, repair, vehicles. The steel is commonly used for the main structure of a racing jack because it is tough and can withstand heavy work loads.

Aluminium

Car and trolley jacks, axle stands, bottle jack, trolley jack, racing jack, vehicles, maintenance, mechanics, DIYers, wonkee donkee, hydraulic. Aluminium is a relatively durable and lightweight metal.
Car jacks, trolley jacks, mechanic, specialist tools, DIYer, wonkee donkee, maintenance, repair, vehicles. The chassis (internal frame) of some racing jacks are made from aluminium as it lightweight and tough. Also the main structure can be completely made from aluminium.
Car jacks, trolley jacks, mechanic, specialist tools, DIYer, wonkee donkee, maintenance, repair, vehicles. Most racing jacks are made of both aluminium and steel for added strength and durability. So the racing jack could contain a aluminium chassis and the main structure made from steel.