The tag shall show the manufacturer's test number and lot number or other designation that will identify the lot of steel.

标签上标明制造商试验号及批号，或者其它识别该批钢筋的证明。

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The effect of this new provision, which was strongly pushed by the NFL in its negotiations with the NFLPA, is to create a couple of advantages for NFL teams: (1) the Tag numbers will be lower, pulling from a more dated pool of numbers, and (2) teams can now use the Tag designation as a greater leverage point in negotiations that is stronger than it was previously.

FORBES: Pro Football Players Face A Tougher Game Of NFL Tag