By way of way of manner of diverse safety stage: consistent with the ga141-2010 tremendous, the bulletproof vests are divided into 6 tiers: ga-1 to ga-6; in u.s., in line with the nij0101.06 trendy, there are six levels: nij iia, ii, iiia, iii, iv and the unique one.by means of way of the awesome
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