a
  • Alfa：锗片, 3-9mm (0.1-0.4in), 99.999% (metals basis)
  • Alfa：锗片, 3-9mm (0.1-0.4in), 99.999% (metals basis)
b

Alfa：锗片, 3-9mm (0.1-0.4in), 99.999% (metals basis)

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