a
  • Alfa：铼丝, 0.5mm (0.02in) 直径, 99.97% (metals basis)
  • Alfa：铼丝, 0.5mm (0.02in) 直径, 99.97% (metals basis)
b

Alfa：铼丝, 0.5mm (0.02in) 直径, 99.97% (metals basis)

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