What a khan to bring steel to specific tasks. Engineers must have confidence in the strength capabilities. The properties and behavior of ล็ when it is loaded.
IMPORTANT imported steel to specific applications. Engineers must have confidence in their ability to get the properties and behavior of the SIA when it was loaded.
Important things of iron to use in particular. Engineers need to have confidence in your ability to withstand the properties and behavior of steel when ได้รับโหลด.