Qingdao Sigma Chemical Co., Ltd (International, US, EU, Canada and Australia domestic

Anybody have a clue which one is Bold U and which one is Deca? From international oil promo in mid September
 

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Anybody have a clue which one is Bold U and which one is Deca? From international oil promo in mid September
Wish I could help, but I have come to the conclusion that at least on the vials, the color top means absolutely nothing. Like it is what was available at the time they did that production run.
 
Wish I could help, but I have come to the conclusion that at least on the vials, the color top means absolutely nothing. Like it is what was available at the time they did that production run.
That’s why I stated it was the international oil promo around Oct 17th
 
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