"A ruler, sometimes called a rule or line gauge, is an instrument used in geometry, technical drawing, printing and engineering/building to measure distances and/or to rule straight lines. Strictly speaking, the ruler is essentially a straightedge used to rule lines[citation needed], but typically the ruler also contains calibrated lines to measure distances"
Stainless steel should be a better option for serving trays. There is no set rule unless there is a specific purpose though.
A steel rule is most commonly refered to as an engineers rule.
"National Steel Rule's website has information on Steel Rule. Fine-Tools and Helmold may also have information on Steel Rule. Wikipedia has info on general rulers, too."
Tool steel.
The term rule in this context is synonymous with ruler, a marked strip that can be used to measure length. A flexible steel rule is make of thin, flexible steel.
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A ruler made of stainless steel.
stainless
The term rule in this context is synonymous with ruler, a marked strip that can be used to measure length. A flexible steel rule is make of thin, flexible steel.
0.5mm
Anyone who is wondering the advantage of using a steel rule over a wooden one they would quickly find that the steel rule is much more durable and easy to read. The wooden rule is quite prone to break if accidentally used wrong.
use oil