i want to buy macbook pro 15 inche ritna display from egypt & i want to know if it was referbushed or not, how can i tell

As you know there is no apple retail store in egypt

all stores who sell apple products are regular stores, they claim to be apple authorized retailers but i know for sure they are definitly not

Because i brought imac from tradeline stores in citystars in egypt a year ago & it was deficted u know techical hardware error from graphics card

and when i gave them my imac 27 inch back to repair it (a white screen appers suddenly) they made even worse.

however i sold very very cheap to some one i know other than those idiots wh call them selves technitians & now i want to buy macbook pro from some one else other tradeline & i want to know if it was referbushed or not by numbers or letters printed on the box.

so please advise

BR