Why do manufacturers prefer to use three legs under storage tanks with an angle of 120° between them?
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Why do manufacturers prefer to use three legs under storage tanks with an angle of 120° between them? Why don’t they opt for four legs arranged in four symmetric positions at angles of 0°, 90°, 180°, and 270°?
How many supports does a valve’s handwheel have up to its hub? How many supports do car wheels have?
It is not easy for four legs to achieve a stable state
Three points and one face, plus it saves money – what kind of bicycle do you need?
If three will do, there’s no need for four.
Four legs with a larger diameter are also quite common, right?
Should it be made into a skirt seat or a saddle seat?
There are options of three or four; it is determined through calculation based on factors such as the device’s diameter and weight
There are options of three or four; it is determined through calculation based on factors such as the device’s diameter and weight