foamed tungsten

  • 1Shaped charge — Sectioned high explosive anti tank round with the inner shaped charge visible …

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  • 2nitrogen group element — ▪ chemical elements Introduction  any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… …

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