In Nouns^x, Hyphens^x

Hi. I proofread automotive copy for car catalogs. There is a phrase that we use that is under debate regarding the use of hyphens. Please review the two phrases and let me know which one is correct. They are as follows: satin-aluminum-finish trim rings or satin-aluminum finish trim rings ...

Hi,this is how the hits look from the net. Notice that a hyphen isn’t used. 1 ST segment depression is a nonspecific abnormality that must be evaluated in the clinical context in which it occurs. In a patient with angina pectoris ST depression usually means subendocardial ischemia and,...

the doctor is dictating: She did develop ST segment depression during occlusion. I am to add a hyphen in between ST-segment depression if it is modifying a noun. If St segment depression is the noun, then no hyphen is needed. My question is, is St segment depression the noun in this...

Mike Do you think a hyphen is necessary " sought-after " ? But when a hyphen is used, it looks like a ' noun ' ?

My rule book states that when numbers are used with words as a compound modifier preceeding a noun a hyphen should be used. So, if the above rule is correct, how should I edit this phrase: a 4- French double-lumen 5-cm Arrow catheter was placed easily in the right internal jugular vein. ...