a
  • Alfa：镨棒, 12.7mm (0.5in) 直径, 99.5% (metals basis去除Ta)
  • Alfa：镨棒, 12.7mm (0.5in) 直径, 99.5% (metals basis去除Ta)
b

Alfa：镨棒, 12.7mm (0.5in) 直径, 99.5% (metals basis去除Ta)

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