QUESTION: Fix punctuation: It contains a necessary but varying amount of sulphur used in the preservation
ANS: It contains a necessary but varying amount of sulphur used in the preservation.
QUES: On the Swedish trotting website wwwatgse you will see the word strukna at the bottom of the list and any nonrunners will be listed there

correct the punctuation.

CORRECTED: On the Swedish trotting website (www.atg.se) you will see the word "strukna" at the bottom of the list and any non-runners will be listed there.
Question: Material Blackoxide steel ST523
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Answer: Material: Black-oxide steel, ST52-3.
The PhD was a collaboration between MindLab the Ministry of Employment and Aarhus University section for anthroprology and ethnography

Can you repeat this sentence, but add in punctuation?
The PhD was a collaboration between MindLab, the Ministry of Employment, and Aarhus University, section for anthroprology and ethnography.
input: It keeps track of how many times you look at a product as well and weights products accordingly
fixed: It keeps track of how many times you look at a product as well, and weights products accordingly.
and the newsletter I discover another piece of previously undetected

Can you repeat this sentence, but add in punctuation?
and the newsletter I discover another piece of previously "undetected"