a
  • Alfa:锗片, 2cm (0.8in) 或更小, Puratronic®, 99.9999+% (metals basis)
  • Alfa:锗片, 2cm (0.8in) 或更小, Puratronic®, 99.9999+% (metals basis)
b

Alfa:锗片, 2cm (0.8in) 或更小, Puratronic®, 99.9999+% (metals basis)

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